Lattice dynamics study of Tl2Ba2CaCu2O8 high-temperature superconductor
| Autor: | Xiao-Wei Jiang, Qiu-Bo Yang, Su Huo, Yang Xiao, Chun-Sheng Jia, Pi-Yuan Lin, Hao Li, Xue-Yan Gou |
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| Rok vydání: | 1996 |
| Předmět: |
Lattice dynamics
Physics High-temperature superconductivity Condensed matter physics Phonon Infrared Mode (statistics) Energy Engineering and Power Technology Condensed Matter Physics Displacement (vector) Electronic Optical and Magnetic Materials law.invention Brillouin zone Condensed Matter::Materials Science symbols.namesake law Condensed Matter::Superconductivity symbols Electrical and Electronic Engineering Raman spectroscopy |
| Zdroj: | Physica C: Superconductivity. 268:41-45 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/0921-4534(96)00351-6 |
| Popis: | We present the frequencies of the Brillouin zone center phonon modes for Tl 2 Ba 2 CaCu 2 O 8 , and give the phonon mode displacement patterns. The calculations are carried out in the framework of a simple force constant model, which includes first neighbor interactions and second neighbor interactions. The ten adjustable parameters are obtained by fitting the experimental data. Our calculated results are in good agreement with the experimental data available from Raman and infrared measurements, and provide new assignments for some zone center phonon modes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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