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Dissertations / Theses on the topic 'Metal crystals'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2024

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1

Abser, Mohammed Nurul. "Synthesis of metal containing liquid crystals." Thesis, University of Central Lancashire, 1991. http://clok.uclan.ac.uk/20372/.

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The primary objective of the present study was to develop mesogenic metal complexes. Part of this work was concerned with the synthesis of structural analogues of existing mesogenic bis-1,2-dithiolatonickel(II) complexes to explore the impact of structural variations on the mesophase behaviour of these complexes and to develop complexes with novel mesophase behaviour. The study was successfully continued to develop new mesogenic systems. The work has shown that replacement of the hydrogen atom at the 2-position of the metallodithiolato ring by a phenyl or alkyl group diminishes the tendency of

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2

Steele, J. M. "Metal oxide single crystals as gas sensors." Thesis, University of Kent, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233273.

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3

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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4

Brown, Stephen James. "The Czochrlaski growth and characterisation of single crystals of lead molybdate." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364392.

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5

Sparkes, Robert P. "Carbocations in palladium crystals." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249213.

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6

Cobb, Stephen Hal. "Gas-phase characterization of the molecular electronic structure of metal clusters and metal cluster oxidation." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/30417.

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7

Krishnamurthy, Vivek. "Theoretical investigation of photonic crystal and metal cladding for waveguides and." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28214.

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Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Klein, Benjamin; Committee Member: Alavi, Kambiz; Committee Member: Allen, Janet K.; Committee Member: Buck, John; Committee Member: Gaylord, Tom; Committee Member: Yoder, Douglas.

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8

Nunes, Silvia Irene. "Grain growth in sintered Zn0 ceramics /." Thesis, Connect to this title online; UW restricted, 1990. http://hdl.handle.net/1773/10594.

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9

Tal, Amir. "THREE-DIMENSIONAL MICRON-SCALE METAL PHOTONIC CRYSTALS VIA MULTI-PHOTON DIRECT LASER WRITING AND ELECTROLESS METAL DEPOSITION." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3889.

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Three-dimensional (3D) metal photonic crystals (MPCs) can exhibit interesting electromagnetic properties such as ultra-wide photonic or "plasmonic" band gaps, selectively tailored thermal emission, extrinsically modified absorption, and negative refractive index. Yet, optical-wavelength 3D MPCs remain relatively unexplored due to the challenges posed by their fabrication. This work explores the use of multi-photon direct laser writing (DLW) coupled with electroless metallization as a means for preparing MPCs. Multi-photon DLW was used to prepare polymeric photonic crystal (PC) templates having

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10

Donnio, B. "Mesomorphic metal complexes of polycatenar stilbazoles : a structure/property study." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242211.

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11

Abdelaziz, Nayera. "Metal-Free and Metal-Based Photochemical Sensitization of Organic Azides in Solution, Crystals, and Cryogenic Matrices." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1624917700560401.

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12

Kim, Won. "Theoretical and semiempirical study of the A0+ state of NaI." Title page, table of contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09phk485.pdf.

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13

Lau, Ka-yin. "Transition metal complexes of functionalized isocyanides as building blocks for molecular solid state materials /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18933841.

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14

Humphrey, Mark Graeme. "Aspects of organometallic chemistry, particularly metal alkynyl and cluster chemistry." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09SD/09sdh9267.pdf.

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Includes bibliographical references. Details research carried out into the nonlinear optical properties of metal alkynyls, chiefly organoruthenium complexes, showing that these complexes can be designed to have very large NLO coefficients. Also demonstrates the utility of spectroscopic, electrochemical and copmutational aids as predictive tools for NLO materials. Also examines cluster synthesis, reactivity and physical properties using ruthenium clusters and hard-donor ligands, affording a series of cluster complrxes that provide structural models for industrially-important hydrotreating inter

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15

Dickinson, Calum. "Metal oxide porous single crystals and other nanomaterials : an HRTEM study." Thesis, University of St Andrews, 2007. http://hdl.handle.net/10023/217.

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Three-dimensional porous single crystals (PSCs) are a recent development in the growing world of mesoporous material. The mesoporosity allows for the material to retain their nanoproperties whilst being bulk in size. The current work concentrates on chromium oxide and cobalt oxide PSCs formed in the templates SBA-15 and KIT-6. HRTEM is the main technique used in this investigation, looking at the morphology and single crystallinity of these materials. A growth mechanism for the PSC material is proposed based on HRTEM observations. XRD studies revealed that the confinement effect, caused by the

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16

Eve, Jemimah Kate. "Adsorption and co-adsorption on metal single crystals at cryogenic temperatures." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313949.

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17

Butterfield, Martin Thomas. "Surface structure of ultrathin metal films deposited on copper single crystals." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/33132.

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Ultrathin films of Cobalt, Iron and Manganese have been thennally evaporated onto an fcc Copper (111) single crystal substrate and investigated using a variety of surface structural teclmiques. The small lattice mismatch between these metals and the Cu (111) substrate make them an ideal candidate for the study of the phenomena of pseudomorphic film growth. This is important for the understanding of the close relationship between film structure and magnetic properties. Growing films with the structure of their substrate rather than their bulk phase may provide an opportunity to grow materials w

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18

劉嘉賢 and Ka-yin Lau. "Transition metal complexes of functionalized isocyanides as building blocks for molecular solid state materials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31214289.

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19

Innes, R. A. "Surface plasmon-polaritons and thermally-induced optical nonlinearities in liquid crystals." Thesis, University of Exeter, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380733.

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20

Kim, Changsu. "Optical, laser spectroscopic, and electrical characterization of transition metal doped ZnSe and ZnS nano- and microcrystals." Birmingham, Ala. : University of Alabama at Birmingham, 2009. https://www.mhsl.uab.edu/dt/2009r/kim.pdf.

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Thesis (Ph. D.)--University of Alabama at Birmingham, 2009.<br>Title from PDF title page (viewed Feb. 3, 2010). Additional advisors: Renato Camata, Derrick Dean, Chris M. Lawson, Andrei Stanishevsky, Sergey Vyazovkin. Includes bibliographical references (p. 133-140).

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21

Carson, Fabian. "Development of Metal–Organic Frameworks for Catalysis : Designing Functional and Porous Crystals." Doctoral thesis, Stockholms universitet, Institutionen för material- och miljökemi (MMK), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-115819.

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Metal–organic frameworks, or MOFs, have emerged as a new class of porous materials made by linking metal and organic units. The easy preparation, structural and functional tunability, ultrahigh porosity, and enormous surface areas of MOFs have led to them becoming one of the fastest growing fields in chemistry. MOFs have potential applications in numerous areas such as clean energy, adsorption and separation processes, biomedicine, and sensing. One of the most promising areas of research with MOFs is heterogeneous catalysis. This thesis describes the design and synthesis of new, carboxylate-ba

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22

許國文 and Kwok-man Hui. "The chemistry of triosmium nitrite clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237083.

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23

Ng, Kwok-sing. "Plastic deformation of aluminium micro-specimens." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B4175802X.

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24

Hui, Kwok-man. "The chemistry of triosmium nitrite clusters /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20666706.

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25

Li, Shiwen. "Metal nanoparticles encapsulated in membrane-like zeolite single crystals : application to selective catalysis." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10057/document.

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Les matériaux « coeur-coquille » composés d’une nanoparticule métallique encapsulée à l'intérieur de coquilles inorganiques (oxydes, carbone …) attirent de plus en plus l'attention par leurs propriétés particulières, en particulier dans le domaine de la catalyse. Les particules métalliques sont protégées par la coquille, qui empêche entre autres le frittage et la croissance des particules à haute température. Cependant, les coquilles sont généralement méso à macroporeuses et elles ne peuvent pas jouer le rôle de tamis moléculaire pour les molécules de taille nanométrique. En revanche, les zéol

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26

Kamath, Amarjit. "Hydrothermal Synthesis and Structural Characterization of Single Crystals of Metal-Organic Hybrid Complexes." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2791.

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27

Boreland, Matt. "Laser crystallisation of silicon for photovoltaic applications using copper vapour lasers." [Sydney : University of New South Wales], 1999. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN1999.0055/index.html.

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28

Antonelli, Sarah Bowen. "Studies of the thermal stability and crystallization behavior of electroless and evaporated nickel and cobalt alloy films /." view abstract or download file of text, 2006. http://proquest.umi.com/pqdweb?did=1251855711&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Thesis (Ph. D.)--University of Oregon, 2006.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 105-120). Also available for download via the World Wide Web; free to University of Oregon users.

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29

Ng, Kwok-sing, and 吳國勝. "Plastic deformation of aluminium micro-specimens." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B4175802X.

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30

Jan, Deng-Yang. "Syntheses and reactivity of cluster systems derived from unsaturated cluster ([mu]-H)̳2Os̳3(CO)̳1̳0 /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487263399024287.

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31

Xie, Shunping. "Growth of silver dendrite crystals and liquid chromatographic analysis of water-soluble gold nanoclusters." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1436.

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32

Ahonen, P. P. "Aerosol production and crystallization of titanium dioxide from metal alkoxide droplets /." Espoo [Finland] : Technical Research Centre of Finland, 2001. http://www.vtt.fi/inf/pdf/publications/2001/P439.pdf.

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33

Rohwer, Andrea Berenike. "Introducing organic molecular crystals into ultrafast electron diffraction." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95819.

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Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Organic molecular salts have a wide range of physical properties which can be chemically tailored by minor variations of their substituents. These characteristics include high degrees of anisotropy, electrical conductivity ranging from superconducting to insulating, and structural changes in the crystal lattice during first order phase transitions brought about by minimal changes in temperature, effective pressure, and in some cases even light. Hence, these materials are particularly interesting for the development of molec

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34

Yu, Xin [Verfasser], and Hans-Joachim [Akademischer Betreuer] Freund. "Ultra-thin silicate films on metal single crystals / Xin Yu. Gutachter: Hans-Joachim Freund." Berlin : Technische Universität Berlin, 2013. http://d-nb.info/1065664958/34.

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35

Klingstedt, Miia. "Characterizing cavity containing materials using electron microscopy : A study of metal oxides, mesoporous crystals and porous material containing nanosized metal-particles." Doctoral thesis, Stockholms universitet, Institutionen för material- och miljökemi (MMK), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-64164.

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This thesis concerns the characterization of novel materials by utilizing electron microscopy techniques. The examined materials contain cavities with certain attributes that enables desired properties for applications such as gas separation, catalysis and fuel cells. The specimens concerned herein belong to the following groups of materials: Metal oxides in the Sb-W-Mo-O system; ordered mesoporous silicas and carbons; hollow spheres containing Au-nanoparticles; zeolite LTA incorporated with mesopores; metal organic frameworks doped with nickel. With scanning electron microscopy (SEM) and tran

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36

Bouzaid, Jocelyne M. "Supramolecular selection in molecular and framework co-crystals." Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/70216/1/Jocelyne_Bouzaid_Thesis.pdf.

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An ongoing challenge in chemistry and crystal engineering is the synthesis of functional materials with predictable structures and customisable properties. This may be achieved by crystallising mixtures of different compounds. Co-crystals formed through this method have predictable structures and their properties may be tuned by varying the ratio of the compounds in the crystallising solution. This thesis examines single crystals formed by the co-crystallisation of metal complexes that have similar structures but different physical or chemical properties. A variety of new compounds with intere

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37

Schaaff, T. Gregory. "Preparation and characterization of thioaurite cluster compounds." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/30858.

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38

Uddin, Salah. "Semi-analytical and numerical modeling of microsegregation for solidifying metallic alloys." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112587.

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In this study, two semi-analytical models of microsegregation were developed to predict the concentration fields of solute in the liquid and solid regions for dendritic solidification of binary metallic alloys. Both models assume that the growing dendrites are cylindrical in shape. This assumption is more realistic compared to the common assumptions of plate-like dendrites that most of the earlier researchers employed in their microsegregation modeling study. The solute redistribution profile, in the developing solid layer, necessary to determine the back diffusion parameter was derived from F

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39

Winston, Erick B. "Dielectric spectroscopy and simulation of cryptophane and metal-organic framework crystals containing internal molecular rotors." 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:3303831.

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40

Gagné, Olivier C. "Bond lengths and bond valences of ions bonded to oxygen: their variability in inorganic crystals." Acta Crystallographica B, 2015. http://hdl.handle.net/1993/31697.

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A large amount of information concerning interatomic distances in the solid state is available, but little has been done in recent times to comprehensively filter, summarize and analyze this information. Here, I examine the distribution of bond lengths for 135 ions bonded to oxygen, using 180,331 bond lengths extracted from 9367 refined crystal structures collected from the Inorganic Crystal Structure Database (ICSD). The data are used to evaluate the parameterization of the bond-length—bond-valence relation of the bond-valence model. Published bond-valence parameters for 135 cations bonde

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41

Förster, Daniel F. [Verfasser]. "EuO and Eu on metal crystals and graphene: interface effects and epitaxial films / Daniel F. Förster." München : Verlag Dr. Hut, 2012. http://d-nb.info/1020298677/34.

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42

張碧玉 and Pik-yuk Christine Cheung. "Crystal structure analysis of imido, nitrido and oxo complexes of rhenium (V), osmium (VI) and ruthenium (III) and some complexes oftrinuclear gold (I)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31210211.

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43

Cheung, Pik-yuk Christine. "Crystal structure analysis of imido, nitrido and oxo complexes of rhenium (V), osmium (VI) and ruthenium (III) and some complexes of trinuclear gold (I) /." [Hong Kong : University of Hong Kong], 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13138327.

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44

Miller, Paul. "Zinc Oxide: A spectroscopic investigation of bulk crystals and thin films." Thesis, University of Canterbury. Physics and Astronomy, 2008. http://hdl.handle.net/10092/3618.

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The optical properties of zinc oxide crystals and thin films prepared by different methods are investigated. Single crystal zinc oxide samples prepared by melt and hydrothermal growth techniques were obtained. The influence of polarity and growth method on the optical properties were studied and correlated with their electronic properties. Thin films prepared by molecular beam epitaxy (MBE) and sputtering were studied and the influence of growth conditions and post growth treatment on the optical properties of the films was investigated. The photo-luminescence (PL) of bulk zinc oxide was exami

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45

Gullapalli, Vikranth. "Study of Metal Whiskers Growth and Mitigation Technique Using Additive Manufacturing." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804972/.

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For years, the alloy of choice for electroplating electronic components has been tin-lead (Sn-Pb) alloy. However, the legislation established in Europe on July 1, 2006, required significant lead (Pb) content reductions from electronic hardware due to its toxic nature. A popular alternative for coating electronic components is pure tin (Sn). However, pure tin has the tendency to spontaneously grow electrically conductive Sn whisker during storage. Sn whisker is usually a pure single crystal tin with filament or hair-like structures grown directly from the electroplated surfaces. Sn whisker is h

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46

Karolak, Michael [Verfasser], and Alexander [Akademischer Betreuer] Lichtenstein. "Electronic Correlation Effects in Transition Metal Systems : From Bulk Crystals to Nanostructures / Michael Karolak. Betreuer: Alexander Lichtenstein." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2013. http://d-nb.info/1045730556/34.

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47

Zhao, Liang. "Optical properties of two-dimemsional Van der Waals crystals: from terahertz to visible." Case Western Reserve University School of Graduate Studies / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=case1433378350.

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48

Parala, Harish. "Precursor routes to selected metal and semiconductor nanomaterials crystals, composites, colloids of Au, GaN, InN, CdSe and TiO₂ /." [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=96870901X.

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49

Parala, Harish. "Precursor routes to selected metal and semiconductor nanomaterials crystals, composites, colloids of Au, GaN, InN, CdSe and TiO2 /." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=96870901X.

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50

Norfleet, David Matthew. "Sample size effects related to nickel, titanium and nickel-titanium at the micron size scale." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1187038020.

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