Band Gaps of SH Wave Propagating Through Elastic/PE/PM Phonon Crystal
نویسندگان
چکیده
منابع مشابه
Temperature dependence of band gaps in semiconductors: Electron-phonon interaction
We have theoretically investigated, by ab initio techniques, the phonon properties of several semiconductors with chalcopyrite structure. Comparison with experiments has led us to distinguish between materials with d electrons in the valence band (e.g., CuGaS2, AgGaS2) and those without d electrons (e.g., ZnSnAs2). The former exhibit a rather peculiar nonmonotonic temperature dependence of the ...
متن کاملTemperature dependence of band gaps in semiconductors: electron-phonon interaction
Most of the experimental results for the temperature dependence of gaps have been obtained for elemental or binary semiconductors.[1] Lately, however, ternary materials such as those with chalcopyrite structure have begun to be investigated. Among the chalcopyrites under examination are II-IV-V2 compounds (e.g. ZnGeAs2) and those in which the divalent cation is replaced by either monovalent cop...
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Mitigation of the global energy crisis requires tailoring the thermal conductivity of materials. Low thermal conductivity is critical in a broad range of energy conversion technologies, including thermoelectrics and thermal barrier coatings. Here, we review the chemical trends and explore the origins of low thermal conductivity in crystalline materials. A unifying feature in the latest material...
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The spin-wave band structure of a two-dimensional bicomponent magnonic crystal, consisting of Co nanodisks partially embedded in a Permalloy thin film, is experimentally investigated along a high-symmetry direction by Brillouin light scattering. The eigenfrequencies and scattering cross sections are interpreted using plane wave method calculations and micromagnetic simulations. At the boundary ...
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Attention is drawn to the fact that copyright of this thesis rests with its author. This copy of the thesis has been supplied on the condition that anyone who consults it is understood to recognise that its copyright rests with its author and that no quotation from the thesis and no information derived from it may be published without the prior written consent of the author. This thesis may be ...
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ژورنال
عنوان ژورنال: International Journal of Control and Automation
سال: 2016
ISSN: 2005-4297,2005-4297
DOI: 10.14257/ijca.2016.9.8.27