Optical phonon self-energies in titanium phases: effects of electron-phonon interaction

被引：7
|
作者：
Ponosov, Yu S. [1 ]
Streltsov, S. V. [1 ,2 ]
Syassen, K. [3 ]
机构：
[1] UD RAS, Inst Met Phys, Ekaterinburg, Russia
[2] Ural Fed Univ, Ekaterinburg, Russia
[3] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
来源：
HIGH PRESSURE RESEARCH | 2012年 / 32卷 / 01期
关键词：
titanium; Raman scattering; pressure; phase transition; phonons; electron-phonon interaction; SCATTERING; DEPENDENCE; METAL; OS;
D O I：
10.1080/08957959.2011.633213
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Temperature-dependent Raman investigations of titanium in the alpha and pressure-quenched.-phase have been carried out. The results obtained suggest the possible coexistence of both phases at ambient pressure and low temperatures. Comparison of the low-temperature E-2g phonon self-energies in both phases with simulations based on the calculated electronic structures for alpha- and omega-Ti implies significant contributions from non-adiabatic electron-phonon interactions.
引用
收藏
页码：138 / 144
页数：7
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