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

共 30 条

[1] LINEAR METHODS IN BAND THEORY [J].

ANDERSEN, OK .

PHYSICAL REVIEW B, 1975, 12 (08) :3060-3083

[2]

ANDERSEN OK, 1985, P INT SCH PHYS E FER

[3] ANOMALOUS ELECTRONIC BEHAVIOR OF CRYSTALLINE PHASES CLOSE TO QUASI-CRYSTALS [J].

BERGER, C ;

GIGNOUX, C ;

TJERNBERG, O ;

LINDQVIST, P ;

CYROTLACKMANN, F ;

CALVAYRAC, Y .

PHYSICA B, 1995, 204 (1-4) :44-50

[4]

Berger C., 1994, LECT QUASICRYSTALS, P463

[5]

Bohr H, 1947, ALMOST PERIODIC FUNC

[6] OPTICAL CONDUCTIVITY OF ICOSAHEDRAL QUASI-CRYSTALS [J].

BURKOV, SE ;

TIMUSK, T ;

ASHCROFT, NW .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (47) :9447-9458

[7] Electronic structure of complex Hume-Rothery phases and quasicrystals in transition metal aluminides [J].

de Laissardière, GT ;

Nguyen-Manh, D ;

Mayou, D .

PROGRESS IN MATERIALS SCIENCE, 2005, 50 (06) :679-788

[8] Effective medium-range Mn-Mn pair interaction induces pseudogap in the density of states of Al(Si)-Mn approximants [J].

de Laissardière, GT ;

Nguyen-Manh, D ;

Mayou, D .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2004, 334 :347-351

[9] ELECTRONIC-STRUCTURE AND HYBRIDIZATION EFFECTS IN HUME-ROTHERY ALLOYS CONTAINING TRANSITION-ELEMENTS [J].

DELAISSARDIERE, GT ;

MANH, DN ;

MAGAUD, L ;

JULIEN, JP ;

CYROTLACKMANN, F ;

MAYOU, D .

PHYSICAL REVIEW B, 1995, 52 (11) :7920-7933

[10] ELECTRONIC-STRUCTURE OF TRANSITION ATOMS IN QUASI-CRYSTALS AND HUME-ROTHERY ALLOYS [J].

DELAISSARDIERE, GT ;

MAYOU, D ;

MANH, DN .

EUROPHYSICS LETTERS, 1993, 21 (01) :25-30

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