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arXiv 1302.2144cond-mat.supr-concond-mat.mtrl-sci
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ZrB2和TiB2的电子结构、声子谱和电声相互作用的比较研究

Comparative study of the electronic structure, phonon spectra and electron-phonon interaction of ZrB2 and TiB2

S. M. Sichkar, V. N. Antonov, V. P. Antropov

摘要:

采用全势能线性Muffin-tin轨道方法,从第一性原理出发研究了MB 2(M=Ti和Zr)二硼化物的电子结构、光学和X射线吸收谱、回旋质量和费米面极值截面的角度依赖关系、声子谱、电子-声子Eliashberg和输运谱函数、电阻率的温度依赖关系.在线性响应理论的框架内进行动态矩阵的计算。计算结果与光学和X射线吸收谱、声子谱、电子-声子谱函数、电阻率、回旋质量和费米面的极值截面等实验数据符合较好。

英文摘要:

The electronic structure, optical and x-ray absorption spectra, angle dependence of the cyclotron masses and extremal cross sections of the Fermi surface, phonon spectra, electron-phonon Eliashberg and transport spectral functions, temperature dependence of electrical resistivity of the MB2 (M=Ti and Zr) diborides were investigated from first principles using the full potential linear muffin-tin orbital method. The calculations of the dynamic matrix were carried out within the framework of the linear response theory. A good agreement with experimental data of optical and x-ray absorption spectra, phonon spectra, electron-phonon spectral functions, electrical resistivity, cyclotron masses and extremal cross sections of the Fermi surface was achieved.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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