Academic literature on the topic 'Ionic crystals'

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Journal articles on the topic "Ionic crystals"

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Gridyakina, A. V. "Electric Properties of Ionic Thermotropic Liquid Crystals." Ukrainian Journal of Physics 61, no. 6 (June 2016): 502–7. http://dx.doi.org/10.15407/ujpe61.06.0502.

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Furusawa, Shinichi, Hiroshi Ochiai, and Khoji Murayama. "Ionic Conductivity of Li2ZnTi3O8 Single Crystal." Key Engineering Materials 497 (December 2011): 26–30. http://dx.doi.org/10.4028/www.scientific.net/kem.497.26.

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Single crystals of lithium zinc titanate (Li2ZnTi3O8) were grown in a double-mirror type optical floating-zone furnace for the first time. Single crystals were characterized by X-ray powder diffraction and Laue measurements. The ionic conductivity of the single crystals was measured in the temperature range of 400–700 K. Below 600 K, the ionic conductivity of the single crystal is one to two orders of magnitude higher than that of polycrystalline Li2ZnTi3O8. In the temperature range of 550–600 K, the temperature dependence of the ionic conductivity shows non-Arrhenius behaviour.
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Binnemans, Koen. "Ionic Liquid Crystals." Chemical Reviews 105, no. 11 (November 2005): 4148–204. http://dx.doi.org/10.1021/cr0400919.

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Braga, Dario. "Ionic co-crystals." Acta Crystallographica Section A Foundations and Advances 75, a2 (August 18, 2019): e597-e597. http://dx.doi.org/10.1107/s2053273319089599.

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Getsis, Anna, and Anja-Verena Mudring. "Ionic Liquid Crystals." Zeitschrift für anorganische und allgemeine Chemie 632, no. 12-13 (September 2006): 2106. http://dx.doi.org/10.1002/zaac.200670060.

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IOFFE, VALERY M. "DOES HIGH TEMPERATURE IONIC SUPERCONDUCTIVITY EXISTS?" International Journal of Modern Physics B 23, no. 04 (February 10, 2009): 597–613. http://dx.doi.org/10.1142/s0217979209049693.

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The basic idea is that we try to find some materials in which bosonic ions with sufficiently small effective mass are used as charge carriers instead of Cooper's pairs in order to provide high temperature ionic superconductivity. Ionic crystals LiCl , LiF , LiBr and LiI were considered with lithium isotope Li 6. Calculations show that Bose condensation temperature for lithium ions in these crystals is of the order of 10-34–10-43 K. If, however, the crystal is compressed so that the wave functions of neighboring lithium ions are sufficiently overlapped, then Bose-condensation temperature of Li 6-ions can be increased significantly. Our estimates show that by compressing the crystals by 20–22% in all three directions, one can raise the Bose-condensation temperature in all crystals considered to above room temperature. To realize materials with room temperature superconductivity in practice, the use of molecular beam epitaxy is proposed for the formation of heterostructures from thin and thick layers of thoughtfully chosen composition.
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López-Bueno, Carlos, Marius R. Bittermann, Bruno Dacuña-Mariño, Antonio Luis Llamas-Saiz, María del Carmen Giménez-López, Sander Woutersen, and Francisco Rivadulla. "Low temperature glass/crystal transition in ionic liquids determined by H-bond vs. coulombic strength." Physical Chemistry Chemical Physics 22, no. 36 (2020): 20524–30. http://dx.doi.org/10.1039/d0cp02633f.

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Self-assembled ionic liquid crystals are anisotropic ionic conductors, with potential applications in areas as important as solar cells, battery electrolytes and catalysis. We show that the type of crystal formed depend on the strength of H-bonds.
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Jung, Jae Kap, Hae Jin Kim, Kee Tae Han, and Sung Ho Choh. "Electric Field Effect on NQR in Ferroelectric Materials." Zeitschrift für Naturforschung A 51, no. 5-6 (June 1, 1996): 646–50. http://dx.doi.org/10.1515/zna-1996-5-645.

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Abstract The electric field effect on NQR in ferroelectric materials, 93Nb in LiNbO3 and 14N in NaNO2 and SC(NH2)2 , has been investigated at 77 K. In these crystals with single domain, only the line shift due to the external electric field was observed. In the case of NaNO2 powder and a crystal with multi-domains, line broadening was observed in the external electric field. These phenomena can be explained with the fact that the direction of spontaneous polarization in a domain is related to the direction of the applied electric field. The rate of the NQR line-shift due to the electric field is remarkably smaller in mostly ionic crystals, such as LiNbO3 and NaNO2 , than in a molecular crystal such as SC(NH2)2 . This is due to the strong ionic bonding in ionic crystals. Also, the difference of the Stark shift'between NaNO2 and SC(NH2)2 is discussed in terms of the local electric field and polarizability at the resonant nuclear site.
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Lobanov, Ye, G. Nikitsky, O. Petchenko, and G. Petchenko. "The Essence and Application of the Optical Absorption Method for Quantitative and Qualitative Analysis of Radiation Defects in Optical Crystals." Lighting engineering and power engineering 3, no. 59 (November 27, 2020): 97–100. http://dx.doi.org/10.33042/2079-424x-2020-3-59-97-100.

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Today ionic crystals are widely used in devices for various purposes. In X-ray spectral optics they are widely used as crystal monochromators; ionic crystals are used in optical devices where lenses and transparent optical media (light filters) are made of optically pure materials - ionic crystals. In general, the main positive feature of these materials is transparency regarding the transmission of radiation in the visible region of the spectrum (transmittance of about 0.9) and neutrality - that is, approximately the same reaction of the medium to different spectral ranges of radiation. Ionic crystals are also widely used in detectors (scintillators, ionizing radiation dosimeters) and lasers. They are also widely used in acousto-optics and electrical engineering (lines of electrical signals delay, which gain efficiency due to the relatively small absorption of ultrasonic waves, and, therefore, it is possible to work with a wide sequence of signals probing the crystal). It is known that when ionizing radiation passes through ionic crystals, color centers appear in them, which can change the spectral composition of radiation both in the UV region and in the visible range. For example, the simplest configurations of color centers (F-centers) lead to the appearance in optical materials of additional absorption bands localized on the wavelength axis with a maximum at the wavelength lmax = 248 нм , but more complex configurations of radiation damage in solids already lead to the appearance of absorption bands at wavelengths in the visible range. This already presents some difficulties for developers and designers of relevant equipment, as changes in the spectral composition of radiation passing through the optical system of the device can lead, for example, to loss of efficiency of the selected radiation receiver, the main characteristic of which is primarily spectral sensitivity. Taking into account possible changes in the spectral composition of radiation is an important and urgent task of modern optical instrumentation. The purpose of this work is the analysis and justification of a method that takes into account structural changes in externally irradiated ionic crystals.
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Misawa, Toshiyuki, Jun Kobayashi, Yoshiki Kiyota, Masayuki Watanabe, Seiji Ono, Yosuke Okamura, Shinichi Koguchi, Masashi Higuchi, Yu Nagase, and Takeru Ito. "Dimensional Control in Polyoxometalate Crystals Hybridized with Amphiphilic Polymerizable Ionic Liquids." Materials 12, no. 14 (July 16, 2019): 2283. http://dx.doi.org/10.3390/ma12142283.

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Ionic liquids are an important component for constructing functional materials, and polyxometalate cluster anion is a promising partner for building inorganic–organic hybrid materials comprising ionic liquids. In such hybrid materials, the precise control of the molecular arrangement in the bulk structures is crucial for the emergence of characteristic functions, which can be realized by introducing an amphiphilic moiety into the ionic liquids. Here, an amphiphilic polymerizable imidazolium ionic liquid with a methacryloyl group was firstly hybridized with polyoxometalate anions of octamolybdate ([Mo8O26]4−, Mo8) and silicotungstate ([SiW12O40]4−, SiW12) to obtain inorganic–organic hybrid crystals. The polymerizable ionic liquid with a octyl chain (denoted as MAImC8) resulted in the formation of anisotropic molecular arrangements in the bulk crystal structure, which was compared with the hybrid crystals composed from the polymerizable ionic liquid without a long alkyl chain (denoted as MAIm). Rather densely packed isotropic molecular arrangements were observed in the hybrid crystals of MAIm–Mo8 and MAIm–SiW12 due to the lack of the amphiphilic moiety. On the other hand, using the amphiphilic MAImC8 cation gave rise to a honeycomb-like structure with the Mo8 anion and a layered structure with the SiW12 anion, respectively.
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Dissertations / Theses on the topic "Ionic crystals"

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Benedek, Nicole Ann, and n. benedek@gmail com. "Interactions in ionic molecular crystals." RMIT University. Applied Sciences, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070109.161440.

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We have used ab initio computational simulation techniques to investigate both intra- and intermolecular interactions in a novel family of ionic organophosphonate molecular crystals. We have examined the influence of various numerical approximations on the computed geometry and binding energies of a selection of well-characterised hydrogen bonded systems. It was found that numerical basis sets provided the efficiency required to study the large hydrogen bonded dimer anions present in the organophosphonate system, while also producing accurate geometries and binding energies. We then calculated the relaxed structures and binding energies of phenylphosphonic acid dimer in the two arrangements in which it is present in the bulk crystal. The computed geometries were in excellent agreement with the experimental structures and the binding energies were consistent with those found for other ionic hydrogen bonded systems. Electron density maps were used to gain insight into the nature of the hydrogen bonding interaction between phenylphosphonic acid dimers. We also examined the effect of aromatic ring substituents on the geometry and energetics of the hydrogen bonding interaction. The nitro-substituted dimer was predicted to have a stronger binding energy than its unsubstituted parent while the methyl-substituted dimer was predicted to have a similar binding energy to its unsubstituted parent. An analysis of crystal field effects showed that the structure of the phenylphosphonic acid dimers in the organophosphonates is a complex product of competing intra- and intermolecular forces and crystal field effects. Cooperative effects in the organophosphonate system were also investigated and it was found that the interactions were mostly one-body (local) in nature. We have examined the intramolecular charge-transfer interaction between copper-halogen cations in the organophosphonate materials. The origin of geometric differences between the Cu(I) starting material and Cu(II) product cations was attributed to the electronic configuration of the Cu ion, not crystal field effects. To gain further insight into the difference in electronic structure between the starting material and product, we attempted to simulate the step-by-step dissociation of the [CuI]+ system. Although this investigation was not successful, we were able to expose some of the pitfalls of simulating dissociating odd-electron systems. We also analysed and compared the charge-transfer interaction in the chloro-, bromo- and iodo-forms of the organophosphonate family. The charge-transfer interaction was predicted to increase on going from the chloro- to the iodo-form, consistent with solid-state UV-visible data. Finally, we used the highly accurate Quantum Monte Carlo (QMC) method to investigate the hydrogen bonding interaction in water dimer and to calculate the dissociation energy. The accuracy of the experimental estimate for the dissociation energy has recently been questioned and an alternative value has been put forward. Our results lend support to the validity of the alternative value and are also in excellent agreement with those from other high-level calculations. Our results also indicate that QMC techniques are a promising alternative to traditional wavefunction techniques in situations where both high accuracy and efficiency are important.
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Griffin, Alexandra. "Crystal synthesis : a study of ionic hydrogen-bonding in crystals." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443673.

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Rowell, D. K. "Point defect calculations in ionic crystals." Thesis, University of Reading, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370129.

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Adam, Marcus. "Embedding of QDs into Ionic Crystals:." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-191160.

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Colloidal semiconductor quantum dots (QDs) have gained substantial interest as adjustable, bright and spectrally tunable fluorophores in the past decades. Besides their in-depth analyses in the scientific community, first industrial applications as color conversion and color enrichment materials were implemented. However, stability and processability are essential for their successful use in these and further applications. Methods to embed QDs into oxides or polymers can only partially solve this challenge. Recently, our group introduced the embedding of QDs into ionic salts, which holds several advantages in comparison to polymer or oxide-based counterparts. Both gas permeability and environmental-related degradation processes are negligible, making these composites an almost perfect choice of material. To evaluate this new class of QD-salt mixed crystals, a thorough understanding of the formation procedure and the final composites is needed. The present work is focused on embedding both aqueous-based and oil-based metal-chalcogenide QDs into several ionic salts and the investigations of their optical and chemical properties upon incorporation into the mixed crystals. QDs with well-known, reproducible and high-quality synthetic protocols are chosen as emissive species. CdTe QDs were incorporated into NaCl as host matrix by using the straightforward "classical" method. The resulting mixed crystals of various shapes and beautiful colors preserve the strong luminescence of the incorporated QDs. Besides NaCl, also borax and other salts are used as host matrices. Mercaptopropionic acid stabilized CdTe QDs can easily be co-crystallized with NaCl, while thioglycolic acid as stabilizing agent results in only weakly emitting powder-like mixed crystals. This challenge was overcome by adjusting the pH, the amount of free stabilizer and the type of salt used, demonstrating the reproducible incorporation of highest-quality CdTe QDs capped with thioglycolic acid into NaCl and KCl salt crystals. A disadvantage of the "classical" mixed crystallization procedure was its long duration which prevents a straightforward transfer of the protocol to less stable QD colloids, e.g., initially oil-based, ligand exchanged QDs. To address this challenge, the "Liquid-liquid-diffusion-assisted-crystallization" (LLDC) method is introduced. By applying the LLDC, a substantially accelerated ionic crystallization of the QDs is shown, reducing the crystallization time needed by one order of magnitude. This fast process opens the field of incorporating ligand-exchanged Cd-free QDs into NaCl matrices. To overcome the need for a ligand exchange, the LLDC can also be extended towards a two-step approach. In this modified version, the seed-mediated LLDC provides for the first time the ability to incorporate oil-based QDs directly into ionic matrices without a prior phase transfer. The ionic salts appear to be very tight matrices, ensuring the protection of the QDs from the environment. As one of the main results, these matrices provide extraordinary high photo- and chemical stability. It is further demonstrated with absolute measurements of photoluminescence quantum yields (PL-QYs), that the PL-QYs of aqueous CdTe QDs can be considerably increased upon incorporation into a salt matrix by applying the "classical" crystallization procedure. The achievable PL enhancement factors depend strongly on the PL-QYs of the parent QDs and can be described by the change of the dielectric surrounding as well as the passivation of the QD surface. Studies on CdSe/ZnS in NaCl and CdTe in borax showed a crystal-induced PL-QY increase below the values expected for the respective change of the refractive index, supporting the derived hypothesis of surface defect curing by a CdClx formation as one main factor for PL-QY enhancement. The mixed crystals developed in this work show a high suitability as color conversion materials regarding both their stability and spectral tunability. First proof-of-concept devices provide promising results. However, a combination of the highest figures of merit at the same time is intended. This ambitious goal is reached by implementing a model-experimental feedback approach which ensures the desired high optical performance of the used emitters throughout all intermediate steps. Based on the approach, a white LED combining an incandescent-like warm white with an exceptional high color rendering index and a luminous efficacy of radiation is prepared. It is the first time that a combination of this highly related figures of merit could be reached using QD-based color converters. Furthermore, the idea of embedding QDs into ionic matrices gained considerable interest in the scientific community, resulting in various publications of other research groups based on the results presented here. In summary, the present work provides a profound understanding how this new class of QD-salt mixed crystal composites can be efficiently prepared. Applying the different crystallization methods and by changing the matrix material, mixed crystals emitting from blue to the near infrared region of the electromagnetic spectrum can be fabricated using both Cd-containing and Cd-free QDs. The resulting composites show extraordinary optical properties, combining the QDs spectral tunability with the rigid and tight ionic matrix of the salt. Finally, their utilization as a color conversion material resulted in a high-quality white LED that, for the first time, combines an incandescent-like hue with outstanding optical efficacy and color rendering properties. Besides that, the mixed crystals offer huge potential in other high-quality applications which apply photonic and optoelectronic components.
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Styring, Peter. "Neutral and ionic metal-containing liquid crystals." Thesis, University of Sheffield, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285012.

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Xu, Fei. "Ionic Liquid Crystals Based on Fluorocomplex Anions." Kyoto University, 2012. http://hdl.handle.net/2433/160955.

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Horton, Robert. "The thermodynamics of charged defects in ionic crystals." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/24548.

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A generic methodology is developed in this thesis to calculate the thermodynamic contribution due to high concentrations of charged defects in ionic crystals. The aim of this methodology is to allow atomistic defect behaviour, such as correlation between defects, to be included in higher-level simulation techniques, for example, when calculating phase diagrams (using CALPHAD) or obtaining charge-concentration profiles through techniques such as solving the Poisson-Boltzmann equation. A number of Monte Carlo methods (specific-heat integration (SHI), Wang-Landau sampling (WL) and nested sampling (NS)) have been applied to a model of a simple solid-electrolyte system. This is an example of a system wherein defects in ionic crystals play a central role in the behaviour. The methods are then used to calculate the thermodynamic properties of the model; for example, it is shown that one can readily obtain the Helmholtz free energy. These properties can in turn be used to parameterise simple regular-solution approaches that allow the provision of a continuum-level description of the free energy. The thermodynamic description obtained from these Monte Carlo methods is compared to those given by more-traditional defect models, such as ideal-solution theory and Debye-Hückel theory, and it is shown that the thermodynamic behaviour of our model system agrees with such a description in the correct limits. The SHI, NS, and WL methods are compared in terms of computational efficiency and ease of implementation, and suggestions are made concerning the applicability of the methods in different regimes. Finally, some suggestions are made as to extensions and further applications of the work.
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Bara, Jason Edward. "New ionic liquids and ionic liquid-based polymers and liquid crystals for gas separations." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3256439.

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Tang, Chi Ming. "Structure and dynamics of doped ionic clusters : a computational study." HKBU Institutional Repository, 1991. https://repository.hkbu.edu.hk/etd_ra/5.

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Бордюг, Ганна Борисівна, and Аркадій Петрович Поліщук. "Fast photoconversion in viologen-doped lyotropic ionic liquid crystals." Thesis, Physikzentrum in Bad Honnef, 2017. http://er.nau.edu.ua/handle/NAU/32391.

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Books on the topic "Ionic crystals"

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Prosandeev, S. A. Ėlektronnoe stroenie i fizicheskie svoĭstva ionno-kovalentnykh kristallov. Rostov na Donu: Izd-vo Rostovskogo universiteta, 1990.

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Gabuda, Svi︠a︡toslav Petrovich. Nepodelennye ėlektronnye pary i khimicheskai︠a︡ svi︠a︡zʹ v molekuli︠a︡rnykh i ionnykh kristallakh: Mulʹtii︠a︡dernai︠a︡ I︠A︡MR-spekroskopii︠a︡, magnetokhimii︠a︡, ėlektronnye korreli︠a︡t︠s︡ionnye vzaimodeĭstvii︠a︡ i reli︠a︡tivistskie effekty. Novosibirsk: In-t neorganicheskoĭ khimii im. A.V. Nikolaeva SO RAN, 2009.

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Galwey, Andrew K. Thermal decomposition of ionic solids. Amsterdam: Elsevier, 1999.

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M, Stoneham A., ed. Ionic solids at high temperatures. Singapore: World Scientific, 1989.

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Miniewicz, Andrazej. Search for molecular-ionic and molecular crystals exhibiting ferroelectric and electrooptic properties. Wrocław: Wydawnictwo Politechniki Wrocławskiej, 1990.

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D, Wachsman E., Electrochemical Society, Electrochemical Society Meeting, and Electrochemical Society. High Temperature Materials Division., eds. Solid state ionic devices IV. Pennington, NJ: Electrochemical Society, 2006.

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A, Meriloo I., ed. Radiat͡s︡ionnai͡a︡ fizika ionnykh kristallov. Tartu: Akademii͡a︡ nauk Ėstonskoĭ SSR, 1986.

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Tepper, Piotr. Optical second harmonic generation in reflection from transparent centrosymmetric ionic crystals. [s.l.]: [s.n.], 1992.

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M, Jacobs P. W., and Dienes G. J. 1918-, eds. Defects and impurity centers in ionic crystals: Optical and magnetic properties. Oxford: Pergamon, 1991.

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M, Jacobs P. W., and Dienes G. J. 1918-, eds. Defects and impurity centers in ionic crystals: Optical and magnetic properties. Oxford: Pergamon, 1990.

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Book chapters on the topic "Ionic crystals"

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Hall, George G. "Ionic Crystals." In Molecular Solid State Physics, 16–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84461-4_2.

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Causin, Valerio, and Giacomo Saielli. "Ionic Liquid Crystals." In Green Solvents II, 79–118. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-2891-2_4.

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Zhang, Chaoyang, Jing Huang, and Rupeng Bu. "Energetic Ionic Crystals." In Intrinsic Structures and Properties of Energetic Materials, 203–34. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2699-2_6.

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Hammou, Abdelkader, and Samuel Georges. "Description of Ionic Crystals." In Solid-State Electrochemistry, 7–46. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39659-6_1.

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Forsyth, Maria, Jennifer M. Pringle, and Douglas R. MacFarlane. "Ion Conduction in Plastic Crystals." In Electrochemical Aspects of Ionic Liquids, 287–305. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471762512.ch24.

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Schaeffer, Bernard. "Plastic Deformation of Ionic Crystals." In Anisotropy and Localization of Plastic Deformation, 171–74. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3644-0_40.

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Basdevant, Jean-Louis, and Jean Dalibard. "Colored Centers in Ionic Crystals." In Advanced Texts in Physics, 1–10. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04277-9_1.

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Ueta, Masayasu, Hiroshi Kanzaki, Koichi Kobayashi, Yutaka Toyozawa, and Eiichi Hanamura. "Photocarrier Motion in Ionic Crystals." In Excitonic Processes in Solids, 437–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-82602-3_8.

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Rabenau, A. "Crystal Growth and Properties of Some New Ionic Conductors." In Growth of Crystals, 343–52. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-7119-3_34.

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Forsyth, Maria, Jennifer M. Pringle, and Douglas R. MacFarlane. "Ion Conduction in Organic Ionic Plastic Crystals." In Electrochemical Aspects of Ionic Liquids, 347–73. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118003350.ch25.

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Conference papers on the topic "Ionic crystals"

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De Ley, E., Arnount De Meyere, B. Maximus, J. P. Vetter, and Herman Pauwels. "Ionic effects in LCDs." In Liquid and Solid State Crystals: Physics, Technology, and Applications, edited by Jozef Zmija. SPIE, 1993. http://dx.doi.org/10.1117/12.156958.

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Reif, Juergen, Matthias Henyk, and Dirk Wolfframm. "Explosive femtosecond ablation from ionic crystals." In Symposium on High-Power Lasers and Applications, edited by Henry Helvajian, Koji Sugioka, Malcolm C. Gower, and Jan J. Dubowski. SPIE, 2000. http://dx.doi.org/10.1117/12.387576.

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Iljin, Andrey G., Gertruda V. Klimusheva, L. P. Yatsenko, T. A. Mirnaya, A. P. Polishchuk, and I. Y. Polishchuk. "Dynamic holography grating recording in ionic liquid crystals." In International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, edited by Gertruda V. Klimusheva. SPIE, 1998. http://dx.doi.org/10.1117/12.323705.

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Kumar, Dinesh, Nazir Ahmad, Vipin Kumar, Vikash Kumar Jha, Shobha Kulshrestha, Richa Saini, and M. S. Shekhawat. "Various polarization mechanisms involved in ionic crystals." In 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0003510.

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Mirnaya, Tatyana A. "Ionic liquid crystals in metal alkanoate systems." In SPIE Proceedings, edited by Gertruda V. Klimusheva, Andrey G. Iljin, and Sergey A. Kostyukevych. SPIE, 2003. http://dx.doi.org/10.1117/12.545759.

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Corrente, Giuseppina Anna, Amerigo Beneduci, and Lucia Veltri. "Thermotropic properties of new electrochromic viologen-based ionic liquid crystals." In The 2nd International Online Conference on Crystals. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/iocc_2020-07721.

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Volynets, N., N. Derevyanko, Alexander Ishchenko, Gertruda V. Klimusheva, A. Kovalchuk, T. A. Mirnaya, G. Yaremchuk, and L. P. Yatsenko. "Specific optical properties of doped ionic lyotropic smectics." In XV International School on Spectroscopy of Molecules and Crystals, edited by Galina A. Puchkovska and Sergey A. Kostyukevych. SPIE, 2002. http://dx.doi.org/10.1117/12.486661.

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Klimusheva, Gertruda V., Alexandr V. Koval'chuk, N. Volynets, and Alexander Y. Vakhnin. "Electro-optical properties of metal organic ionic liquid crystals." In XIV Conference on Liquid Crystals, Chemistry, Physics, and Applications, edited by Jolanta Rutkowska, Stanislaw J. Klosowicz, and Jerzy Zielinski. SPIE, 2002. http://dx.doi.org/10.1117/12.472178.

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El-Aooiti, Malek, Auke de Vries, and Derick Rousseau. "Destabilization of Particle-stabilized Emulsions with Non-ionic Surfactants." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/swzy9436.

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Abstract:
"Particle-stabilized water-in-oil (W/O) emulsions are commonly sought for applications that demand long-term resistance against droplet coalescence. However, their remarkable stability may pose problems for uses that require controlled breakdown, such as for controlled release applications. Here, we investigated the demulsification of model W/O emulsions stabilized by glycerol monostearate (GMS) crystals solidified prior to emulsification. We studied the ability of the surfactants sorbitan monooleate (SMO), sorbitan monolaurate (SML), polyglycerol polyricinoleate (PGPR), citric acid esters of mono and diglycerides (CITREM), sorbitan trioleate (STO), and propylene glycol monolaurate (PgML) to act as demulsifiers based on their capacity to alter the wettability of interfacially-bound GMS crystals. Demulsification was promoted by the addition of SMO, SML, and CITREM, which promoted the transition of the GMS crystals from oil-wet to water-wet, thereby reducing their ability to stabilize the starting oil-continuous emulsions. Conversely, surfactants PGPR, STO, and PgML, did not sufficiently alter GMS crystal wettability to illicit demulsification. We found that two factors were necessary for a surfactant to act as a demulsifier, namely a strong affinity to the surface of GMS crystals as well as to the oil-water interface. From a compositional perspective, SMO, SML, and CITREM were effective demulsifiers because of their availability of sterically unhindered polar functional groups that can anchor to the surface of GMS crystals and polar dispersed phase droplets. Conversely, polar functional groups in PGPR and STO were sterically hindered, preventing adsorption to polar surfaces, while the propylene glycol head-group of PgML lacked polar character. Furthermore, it was shown that emulsion breakdown was concentration dependent, with surfactant concentration dominating release kinetics. Overall, this work showed that tuning the wettability of interfacially-bound GMS crystals could be used to destabilize particle-stabilized W/O emulsions, which may allow for the controllable breakdown of highly stable emulsions.
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Bartczak, Witold M., Michal Zapalowski, and Krystyna Wolf. "Molecular simulations of concentrated aqueous solutions: ionic equilibrium structures in solutions." In International Conference on Solid State Crystals 2000, edited by Antoni Rogalski, Krzysztof Adamiec, and Pawel Madejczyk. SPIE, 2001. http://dx.doi.org/10.1117/12.435813.

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Reports on the topic "Ionic crystals"

1

McClure, D. S. Photoionization and electron transfer in ionic crystals. Office of Scientific and Technical Information (OSTI), September 1990. http://dx.doi.org/10.2172/6764874.

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Mi, Xiang-Dong, and Deng-Ke Yang. Ionic Effects in Bistable Reflective Cholesteric Liquid Crystals. Fort Belvoir, VA: Defense Technical Information Center, January 2000. http://dx.doi.org/10.21236/ada455816.

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McClure, D. S. [Aspects of photoionization of impurities and electron transfer in ionic crystals]. Office of Scientific and Technical Information (OSTI), February 1993. http://dx.doi.org/10.2172/7030754.

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McClure, D. S. [Aspects of photoionization of impurities and electron transfer in ionic crystals]. Final report, [September 1984--September 1991]. Office of Scientific and Technical Information (OSTI), February 1993. http://dx.doi.org/10.2172/10128271.

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Park, E. T., and J. H. Park. Pressure effect on ionic conductivity in yttrium-oxide-doped single-crystal zirconium oxide. Office of Scientific and Technical Information (OSTI), June 1998. http://dx.doi.org/10.2172/656718.

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Roberts, Joel Glenn. Surface structure determinations of crystalline ionic thin films grown on transition metal single crystal surfaces by low energy electron diffraction. Office of Scientific and Technical Information (OSTI), May 2000. http://dx.doi.org/10.2172/764397.

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Christe, Karl O., Xiongzhi Zhang, Jeffrey A. Sheehy, and Robert Bau. Crystal Structure of CIF4+SbF6-, Normal Coordinate Analyses of CIF4+ BrF4+, IF4+, SF4, SeF4, and TeF4, and Simple Method for Calculating the Effects of Fluorine Bridging on the Structure and Vibrational Spectra of Ions in a Strongly Interacting Ionic Solid. Fort Belvoir, VA: Defense Technical Information Center, October 2000. http://dx.doi.org/10.21236/ada408568.

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