Anharmonicity in aluminum hydride at high pressures

被引：4
|
作者：
Rousseau, Bruno [1 ,2 ]
Bergara, Aitor [1 ,2 ,3 ]
机构：
[1] Donostia Int Phys Ctr DIPC, Donostia San Sebastian 20018, Basque Country, Spain
[2] EHU, CSIC UPV, Ctr Fis Mat, Donostia San Sebastian 20080, Basque Country, Spain
[3] Euskal Herriko Unibertsitatea, Zientzia eta Teknol Fak, Mat Kondentsatuaren Fis Saila, Bilbao 48080, Basque Country, Spain
来源：
HIGH PRESSURE RESEARCH | 2011年 / 31卷 / 01期
关键词：
anharmonicity; hydride; pressure; superconductivity; INDUCED METALLIZATION; HYDROGEN; SUPERCONDUCTIVITY; CRYSTAL; SILANE;
D O I：
10.1080/08957959.2010.520209
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Aluminum hydride has been predicted to be a superconductor with a transition temperature of 24K at 110GPa, in disagreement with the experimental observation. In this work, it is shown that the bulk of the electron-phonon coupling can be associated with modes that are highly anharmonic according to frozen phonon calculations. This large anharmonicity could partially explain the origin of the disagreement between previous predictions and experiments.
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收藏
页码：30 / 34
页数：5
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