Ab-initio quantum diffusion in quasicrystals

被引：0

作者：

Julien, J. -P. ^{[1
]}

De Laissardiere, G. Trambly ^{[2
]}

Mayou, D. ^{[3
]}

机构：

[1] CNRS, Lab Etud Proprietes Elect Solides, BP 166, F-38042 Grenoble 9, France

[2] Universite Cergy Pontoise, Lab Phys Theorique & Modelisati, CNRS, F-95302 Cergy, France

[3] CNRS, Lab Detudes Propriets Elect Solides, F-38042 Grenoble CEDEX, France

来源：

RECENT ADVANCES IN THE THEORY OF CHEMICAL AND PHYSICAL SYSTEMS | 2006年 / 15卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We compute the velocity correlation function of electronic states close to the Fermi energy, in approximants of quasicrystals. As we show the long tune value of this correlation function is small. This means a small Fermi velocity, in agreement with previous band structure studies. Furthermore the correlation function is negative on a large time interval which means a phenomenon of backscattering. As shown in previous studies the backscattering can explain unusual conduction properties, observed in these alloys, such as for example the increase of conductivity with disorder.

引用

页码：535 / +

页数：3

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