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Optical dephasing in semiconductor mixed crystals
Physical Review B, 1992The influence of disorder and localization on optical dephasing of excitons in the semiconductor mixed crystals ${\mathrm{CdS}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Se}}_{\mathit{x}}$ and ${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As has been investigated by means of time-resolved four-wave mixing and ...
, Siegner +11 more
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Solid State Communications, 1974
Abstract Dispersion relations for the optic and acoustic phonons in mixed crystals are derived as a function of concentration. The dispersion curves show localized as well as band modes. It is shown that our theory leads to the MREI model of Chang and Mitra when the wave vector q = 0.
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Abstract Dispersion relations for the optic and acoustic phonons in mixed crystals are derived as a function of concentration. The dispersion curves show localized as well as band modes. It is shown that our theory leads to the MREI model of Chang and Mitra when the wave vector q = 0.
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On the microhardness of mixed crystals
Journal of Applied Physics, 1980The Kataoka-Yamada model for highly concentrated solid solutions has been used to calculate the microhardness of NaCl-NaBr, KCl-KBr, and KBr-KI systems. The extra hardness in mixed crystals is computed from the amount of hindrance in the transport of ion pairs in the fluctuating stress field produced by the random distribution of anions of different ...
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ACS Nano, 2011
Physisorbed monolayers based on relatively weak noncovalent interactions can serve as excellent model systems for understanding crystallization of materials in reduced dimensionality. Here we employ a powerful combination of scanning tunneling microscopy (STM), differential scanning calorimetry (DSC), and computational modeling to reveal two ...
Mali, K.S. +7 more
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Physisorbed monolayers based on relatively weak noncovalent interactions can serve as excellent model systems for understanding crystallization of materials in reduced dimensionality. Here we employ a powerful combination of scanning tunneling microscopy (STM), differential scanning calorimetry (DSC), and computational modeling to reveal two ...
Mali, K.S. +7 more
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Polymerization in mixed crystals
Journal of Materials Science, 1980Suitably substituted diacetylenes can be co-crystallized to form substitutional solid solutions. By solid state polymerization of these mixed crystals macroscopic single crystals of statistical copolymers can be obtained. The co-crystallization is described and the influence of crystal composition on structure and reactivity in the solid state is ...
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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1966
Abstract Calculations have been made of the exciton band structure of the naphthalene crystal in a periodic volume of 10 x 10 x 10 unit cells. Levels belonging to special values of wave vector are reported for the crystal structure at room temperature and at 95 °K.
David Parker Craig, M. R. Philpott
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Abstract Calculations have been made of the exciton band structure of the naphthalene crystal in a periodic volume of 10 x 10 x 10 unit cells. Levels belonging to special values of wave vector are reported for the crystal structure at room temperature and at 95 °K.
David Parker Craig, M. R. Philpott
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Elementary Excitations of Isotope: Mixed Crystals
Physics Reports, 2005This book develops and describes the isotope effect in the low-dimensional structures (down to 3–10 A). Without assuming prior knowledge of quantum physics, present book provides a unifying framework for the basic ideas needed to understand the recent developments in the nanoscience.
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Localization of phonons in mixed crystals
Physical Review B, 1988, Chu, , Zhang
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