Relevant bibliographies by topics / Exciton g-Factor

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Exciton g-Factor'

Author: Grafiati
Published: 24 June 2023

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Journal articles on the topic "Exciton g-Factor"

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SCHMIDT, T., L. WORSCHECH, M. SCHEIBNER, T. SLOBODSKYY, L. W. MOLENKAMP, and A. FORCHEL. "SPIN POLARIZATION IN SEMIMAGNETIC CdMnSe/ZnSe QUANTUM DOTS WITH ZERO EXCITON g FACTOR." International Journal of Modern Physics B 21, no. 08n09 (2007): 1626–31. http://dx.doi.org/10.1142/s0217979207043324.

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We have investigated the degree of circular polarization (ρ) in the emission of semimagnetic CdMnSe/ZnSe quantum dots (QDs) with Mn contents of nominally 0, 1 and 2 %. Circularly polarized excitation was used to control the polarization of the excited carriers. The g factors were determined from the dependence of ρ on the magnetic field strength. We demonstrate that in QDs with 1 % Mn the exciton g factor is vanishingly small. We also present measurements on the excitation power dependent changes of the polarization. A direct heating mechanism is identified as origin of the drastic enhancement
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Lalitha, D., A. John Peter, and Chang Woo Lee. "Magneto-trions in a GaMnAs/Ga0.6Al0.4As Quantum Dot." International Journal of Nanoscience 14, no. 05n06 (2015): 1550023. http://dx.doi.org/10.1142/s0219581x15500234.

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Magneto bound exciton and the charged exciton in a GaMn 0.02 As / Ga 0.6 Al 0.4 As quantum dot are reported with the spatial confinement effect. The numerical calculations are carried out with the inclusion of exchange interaction between the carrier and the magnetic impurities. The binding energies of exciton and the trions and the optical transition energy are obtained as a function of dot radius. Numerical computations are followed using exact diagonalization method. The spin polaronic energy of the exciton and the charged excitons are obtained using a mean field theory in the presence of m
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N. R. Senthil Kumar, N. R. Senthil Kumar, A. John Peter A. John Peter, and Chang Woo Lee Chang Woo Lee. "Optical properties of excitons in strained Gax In1-xAs/GaAs quantum dot: ef fect of geometrical conf inement on exciton g-factor." Chinese Optics Letters 11, no. 8 (2013): 082501–82507. http://dx.doi.org/10.3788/col201311.082501.

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Ju, Long, Lei Wang, Ting Cao, et al. "Tunable excitons in bilayer graphene." Science 358, no. 6365 (2017): 907–10. http://dx.doi.org/10.1126/science.aam9175.

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Excitons, the bound states of an electron and a hole in a solid material, play a key role in the optical properties of insulators and semiconductors. Here, we report the observation of excitons in bilayer graphene (BLG) using photocurrent spectroscopy of high-quality BLG encapsulated in hexagonal boron nitride. We observed two prominent excitonic resonances with narrow line widths that are tunable from the mid-infrared to the terahertz range. These excitons obey optical selection rules distinct from those in conventional semiconductors and feature an electron pseudospin winding number of 2. An
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Faria Junior, Paulo E., Klaus Zollner, Tomasz Woźniak, Marcin Kurpas, Martin Gmitra, and Jaroslav Fabian. "First-principles insights into the spin-valley physics of strained transition metal dichalcogenides monolayers." New Journal of Physics 24, no. 8 (2022): 083004. http://dx.doi.org/10.1088/1367-2630/ac7e21.

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Abstract Transition metal dichalcogenides (TMDCs) are ideal candidates to explore the manifestation of spin-valley physics under external stimuli. In this study, we investigate the influence of strain on the spin and orbital angular momenta, effective g-factors, and Berry curvatures of several monolayer TMDCs (Mo and W based) using a full ab initio approach. At the K-valleys, we find a surprising decrease of the conduction band spin expectation value for compressive strain, consequently increasing the dipole strength of the dark exciton by more than one order of magnitude (for ∼ 1 % – 2 % stra
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Burakowski, M., P. Mrowiński, M. Gawełczyk, J. P. Reithmaier, S. Höfling, and G. Sęk. "Diamagnetic coefficients and g-factors of InAs/InGaAlAs quantum dashes emitting at telecom wavelengths." Journal of Applied Physics 132, no. 14 (2022): 144301. http://dx.doi.org/10.1063/5.0101345.

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Semiconductor nanostructures of various material systems are heavily researched for information processing applications as single-photon sources for communication and as a spin memory for storage. Here, exciton, electron, and hole properties in single InAs/InP asymmetric quantum dots (quantum dashes) emitting in a broad spectral range from 0.8 to above 1 eV are studied experimentally and theoretically. Experiments using magneto-microphotoluminescence allowed us to determine g-factor tensor components and diamagnetic coefficients. The growth-axis exciton g-factor is in a 0.0–2.9 range with a co
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Turyanska, L., R. J. A. Hill, O. Makarovsky, et al. "Tuneable paramagnetic susceptibility and exciton g-factor in Mn-doped PbS colloidal nanocrystals." Nanoscale 6, no. 15 (2014): 8919–25. http://dx.doi.org/10.1039/c4nr02336f.

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We report on PbS colloidal nanocrystals that combine within one structure solubility in physiological solvents with near-infrared photoluminescence, and magnetic (magnetic susceptibility) and optical (exciton g-factor) properties tuneable by the controlled incorporation of magnetic impurities (Mn).
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Lacroix, Y., C. A. Tran, S. P. Watkins, and M. L. W. Thewalt. "Optical identification of the exciton–polariton in epitaxial InAs." Canadian Journal of Physics 74, S1 (1996): 212–15. http://dx.doi.org/10.1139/p96-861.

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We report optical identification of the exciton–polariton in epitaxial InAs by combined photoluminescence, reflectance, and transmittance spectroscopy. The photoluminescence of these samples showed identifiable spectral lines a thousand times narrower than previously published results from other groups. The measurements were made at 1.4 K and at magnetic fields up to 7 T. Contrary to what is observed in other III–V semiconductors such as GaAs or InP, the free exciton (polariton) is nearly invisible in the photoluminescence spectrum without the application of a magnetic field. We believe that t
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Klotz, F., V. Jovanov, J. Kierig, et al. "Observation of an electrically tunable exciton g factor in InGaAs/GaAs quantum dots." Applied Physics Letters 96, no. 5 (2010): 053113. http://dx.doi.org/10.1063/1.3309684.

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Quax, G. W. W., T. E. J. Campbell Ricketts, A. M. Yakunin, et al. "All-optical control of the exciton g-factor in InAs/GaAs quantum dots." Physica E: Low-dimensional Systems and Nanostructures 40, no. 6 (2008): 1832–35. http://dx.doi.org/10.1016/j.physe.2007.10.089.

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Dissertations / Theses on the topic "Exciton g-Factor"

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Wang, Shuli. "Étude des propriétés électroniques des perovskites bidimensionnelles à halogénure métallique par spectroscopie magnéto-optique." Electronic Thesis or Diss., Toulouse, INSA, 2023. http://www.theses.fr/2023ISAT0004.

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Ces dernières années, les matériaux pérovskites bidimensionnels (2D) ont attiré une attention considérable en raison de leurs propriétés électroniques et optiques uniques et excellentes, qui en font un semi-conducteur extrêmement prometteur pour les applications d'émission de lumière et d'affichage. En outre, la pérovskite non magnétique peut devenir un semi-conducteur magnétique en incorporant des impuretés magnétiques dans les réseaux de la pérovskite hôte pour introduire des propriétés magnétiques. La coexistence d'excellentes propriétés optoélectroniques et magnétiques fait de la pérovskit
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Gonzalez, Hernandez Felix Guillermo. "Tempos de relaxação e decoerência em ensembles de pontos quânticos." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277852.

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Orientador: Gilberto Medeiros Ribeiro<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb Wataghin<br>Made available in DSpace on 2018-08-09T10:48:50Z (GMT). No. of bitstreams: 1 GonzalezHernandez_FelixGuillermo_D.pdf: 12837677 bytes, checksum: 70e82c96ea88ab1de4fa785d908c9af6 (MD5) Previous issue date: 2007<br>Resumo: Medidas experimentais foram realizadas para determinar as escalas de tempo de relaxação e decoerência do spin eletrônico como bit quântico. A estrutura dos estados de exciton foi investigada com o objetivo de servir como estados intermediários na
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Godoy, Marcio Peron Franco de. "Propriedades de pontos quânticos de InP/GaAs." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/277715.

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Orientador: Fernando Iikawa<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-06T18:02:06Z (GMT). No. of bitstreams: 1 Godoy_MarcioPeronFrancode_D.pdf: 4057709 bytes, checksum: 0df1e56082150d4109dcf891f05d4da6 (MD5) Previous issue date: 2006<br>Resumo: Neste trabalho estudamos as propriedade estruturais e ópticas de pontos quânticos auto-organizados de InP crescidos sobre o substrato de GaAs. Esta estrutura apresenta o alinhamento de bandas tipo-II na interface, confinando o elétron no ponto quântico, enquanto o
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Kucharska, A. I. "Measurement of g-factors of excited states in some medium mass nuclei using the Transient Field Technique." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375280.

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Raskin, Maxim. "Ultraschnelle Ladungsträger- und Spindynamik in II-VI und III-V Halbleitern mit weiter Bandlücke." Doctoral thesis, Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-125227.

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Die vorliegende Arbeit beschäftigt sich mit der Herstellung und Charakterisierung von verdünnten magnetischen II-VI und III-V Halbleiter-Dünnschichten. Diese Systeme bieten vereinfachte optische kohärente Kontrolle von Spin-basierten Prozessen und eignen sich hervorragend für den Einsatz in zukünftigen opto-magnetischen Anwendungen. ZnO-, ZnXO-, GaN- und GaXN-Proben (X = Mangan, Cobalt) sind mit Hilfe der naßchemischen Sol-Gel Synthese hergestellt worden. Sie werden mit Hilfe der Photolumineszenzspektroskopie untersucht. Die spektrale Position der elektronischen Niveaus in der Nähe der Bandka
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SAGE, FRANCOISE. "Pompage optique du niveau metastable **(3)p : :(o) de la premiere configuration excitee des isotopes impairs des gaz rares." Caen, 1985. http://www.theses.fr/1985CAEN2039.

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Etude experimentale de ce pompage optique sur les isotopes **(21)ne, **(83)kr, **(129)xe et **(131)xe afin de mesurer le facteur de lande g(**(3)po) par des experiences de resonance magnetique en phase vapeur (**(21)ne) ou son faisceau atomique, les atomes etant portes dans l'etat metastable a l'aide d'une decharge haute frequence et pompes optiquement par un laser a colorant continu accordable, avec une precision superieure a celle des calculs a partir de la structure hyperfine
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Book chapters on the topic "Exciton g-Factor"

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Meyer, B. K. "ZnO: exciton g-factors." In New Data and Updates for IV-IV, III-V, II-VI and I-VII Compounds, their Mixed Crystals and Diluted Magnetic Semiconductors. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14148-5_323.

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Meyer, B. K. "GaN, hexagonal modification: exciton g-factors." In New Data and Updates for I-VII, III-V, III-VI and IV-VI Compounds. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-48529-2_113.

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Windle, Michael. "Introduction and Overview of Statistical Approaches to Gene × Environment Interactions for Complex Phenotypes." In Statistical Approaches to Gene X Environment Interactions for Complex Phenotypes. The MIT Press, 2016. http://dx.doi.org/10.7551/mitpress/9780262034685.003.0001.

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This chapter provides an introduction and overview of important issues that served as motivations for this book. For many complex phenotypes (e.g., depression, diabetes, obesity, substance use), there is substantial evidence that while genetic influences are important, so are environmental influences; moreover, there is substantial evidence from both behavior genetic studies (e.g., twin and adoptee studies) and molecular genetic studies (both human and infrahuman) that genes commonly interact with environmental factors in predicting complex phenotypes. The fields of genomics and other –omics (e.g., proteomics, metabolomics) provide exciting opportunities to advance science and foster the goals of public health and a more individualized intervention approach (e.g., precision medicine). The goals of these more individualized approaches would benefit greatly not only by advances in genomics and other –omics, but also by incorporating information both on environments and their interactions with genomic and other biological material and regulatory processes (e.g., environmental signal to biological pathway responses). Such findings would thereby offer more flexible guidance to a broader range of prevention, intervention, and treatment targets, and facilitate more tailored programs based on a fuller complement of G and E influences.
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Calvert, Jack G., John J. Orlando, William R. Stockwell, and Timothy J. Wallington. "Mechanisms of Ozone Reactions in the Troposphere." In The Mechanisms of Reactions Influencing Atmospheric Ozone. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190233020.003.0005.

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In Chapter I, we identified the origin of stratospheric ozone and its role in limiting the short wavelengths of sunlight reaching the Earth. We also saw the importance of trace impurities of NOx and hydrocarbons in the development of tropospheric ozone. In this chapter, we review and evaluate the chemical reactions of ozone that create the important hydroxyl (HO) radical. It is the photodecomposition of tropospheric ozone that is the major source of the important HO radical, and it is the HO radical that initiates the destruction of most of the reactive trace gases that are emitted into the atmosphere. Ozone also serves as a major reactant for removal of the alkenes and other reactive unsaturated compounds, and, in this chapter, we review and evaluate the rate coefficients and mechanisms of these reactions and the expected products that result from them. The reactions that generate oxygen atoms in their first excited electronic state, O(1D) atoms, and ultimately HO radicals within the atmosphere are initiated through ozone photodecomposition: . . . O3 (X1A1) + hν → O(1D) + O2(a1Δg) (I) . . . . . . → O(1D) + O2(X3Σ–g) (II) . . . A fraction of the O(1D) atoms formed in the reactions (I) and (II) react with water molecules to generate HO radicals in reaction (1) and a larger fraction are deactivated by collisions with N2 and O2 molecules to form ground state O(3P) atoms in reaction (2): . . . O(1D) + H2O → HO + HO (1) . . . . . . O(1D) + M (N2, O2) → O(3P) + M (N2, O2) (2) . . . The competition between H2O and other air molecules (N2, O2) for reaction with O(1D) atoms results in HO generation being dependent on relative humidity. Rate coefficients for reaction of O(1D) with H2O, N2, and O2 at 298 K (in units of 10−10 cm3 molecule−1 s−1) recommended by the International Union of Pure and Applied Chemistry (IUPAC) panel are 2.14, 0.31, and 0.40, respectively (Atkinson et al., 2004). To better understand the factors that control HO formation, we will review ozone photochemistry, its cross sections, quantum yields of its major photodecomposition modes, and its photolysis frequencies under varied atmospheric conditions.
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Conference papers on the topic "Exciton g-Factor"

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Senthilkumar, N. R., and A. John Peter. "Effects of gallium alloy content and the geometrical confinement on effective exciton g-factor in a III-V semiconductor quantum dot." In SOLID STATE PHYSICS: PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4791389.

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Stuchbery, Andrew E. "Excited-state g-factor measurements with radioactive ion beams." In MAPPING THE TRIANGLE: International Conference on Nuclear Structure. AIP, 2002. http://dx.doi.org/10.1063/1.1517982.

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STONE, N. J. "METHODS FOR G-FACTOR MEASUREMENTS ON SHORT-LIVED EXCITED STATES USING RADIOACTIVE BEAMS." In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702401_0044.

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Taylor, M. J. "g Factor Measurement of the Excited 2+ State in the fp Shell Nucleus 44Ca." In MAPPING THE TRIANGLE: International Conference on Nuclear Structure. AIP, 2002. http://dx.doi.org/10.1063/1.1517984.

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Guevara, Z. E., and D. A. Torres. "Lifetime and g-factor measurements of excited states using Coulomb excitation and alpha transfer reactions." In THERMOPHYSICS 2016: 21st International Meeting. Author(s), 2016. http://dx.doi.org/10.1063/1.4955347.

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Guan, Huapeng, Robert W. Hellwarth, Jouni P. Partanen, and Nansheng Tang. "The optical polarizability of excited C60 molecules." In Nonlinear Optics: Materials, Fundamentals and Applications. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/nlo.1996.nthe.10.

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Over a dozen reports of optically-induced changes of up to a factor of 5 in the absorption cross-section of the C60 molecule at 532 nm1 have prompted us to investigate whether there might be a correspondingly large change in the (in-phase) polarizability of C60 at the same wavelength. Unfortunately for nonlinear optical applications, we have found a negative answer: the change is less than 3% for the polarizability of C60 upon excitation to either the lowest singlet or triplet state. In the course of this investigation, we have made, we believe, a more accurate determination of the absorption
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Bochove, E. J., and P. W. Milonni. "Radiative Momentum Transfer to Atoms by a Phase-Conjugate Mirror." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.pd8.

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We demonstrate, by solution of the Heisenberg equations of motion of the pseudo-spin and momentum operators of a two-level atom interacting with a phase- conjugate mirror (PCM) and a quantized radiation field, that a force is exerted by the PCM on the ground state atom. The expression found for the force is F=gRA(P1-P2)pvn̂, where P1 and P2 are the ground and excited state occupation probabilities, A=Einstein A-coefficient, pv=photon momentum at resonance, R=PCM reflectivity, n̂=unit outward normal to the PCM, and g=an aperture factor (g=9/64 for a dipole parallel to the plane of the PCM and s
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Wang, Qi, Da Xing, Wei Liu, Yongkang Cheng та Zuguang Ma. "Study of stimulated emission from high-lying F ′ Σ g + — B ′ Π 4 and new cascade radiation in Na2". У International Laser Science Conference. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.ff4.

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The first observation is reported of a stimulated emission at 0.75–0.81 μm for the high-lying F ′ Σ g + — B ′ Π 4 transition and a new cascade radiation at 1.14–1.18 μm for the F ′ Σ g + → 2 ′ Σ 4 + — 2 ′ Σ g + transition in sodium vapor, two-photon resonantly pumped by an excimer laser–dye laser (rhodamine 6G) tunable over a 570–615-nm range. The lasing at 0.75–0.81 μm is recorded in Na2 at 500 °C and buffer argon pressures of 0.5, 5, and 100 Torr, respectively. At higher pressures the operating temperature range at which laser action can occur is very limited. A comparison of the theoretical
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RAMAYYA, A. V., C. GOODIN, K. LI, et al. "TECHNIQUE FOR MEASURING ANGULAR CORRELATIONS AND g-FACTORS OF EXCITED STATES WITH LARGE MULTI-DETECTOR ARRAYS: AN APPLICATION TO NEUTRON RICH NUCLEI PRODUCED IN SPONTANEOUS FISSION." In Proceedings of the 9th International Spring Seminar on Nuclear Physics. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812779038_0007.

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Saikia, Bhaskarjyoti, Girish Kulkarni, Hrushikesh Sathe, Pravin Kakde, Tanmay Vyas, and Yiran Li. "Prediction of Exhaust System Vibration Through Harmonic Analysis & High Cycle Fatigue Life Evaluation." In ASME 2021 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icef2021-67753.

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Abstract Exhaust system typically experiences vibration during engine operating conditions due to periodic disturbing forces (firing force and inertia force) which are generated from the engine. Natural frequency of the exhaust system gets excited due to the periodic forces causing resonance which often leads to high cycle fatigue (HCF) failure. Turbocharger is a part of exhaust system and it is mounted on the exhaust manifold. The periodic forces are transferred from engine base (Cylinder head and Block) and these forces gets amplified to overhanging components like exhaust system turbocharge
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