Indications for a metal-insulator transition in quasicrystalline i-AlPdRe

被引：42

作者：

Gignoux, C ^{[1
]}

Berger, C ^{[1
]}

Fourcaudot, G ^{[1
]}

Grieco, JC ^{[1
]}

Rakoto, H ^{[1
]}

机构：

[1] INST NATL SCI APPL,SNCMP,F-31077 TOULOUSE,FRANCE

来源：

EUROPHYSICS LETTERS | 1997年 / 39卷 / 02期

关键词：

D O I：

10.1209/epl/i1997-00331-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present indications for a metal-insulator transition in the icosahedral AlPdRe phase of high structural quality. We follow the conductivity through the transition and its dependence on temperature and magnetic field in a series of i-AlPdRe samples. Features typical for systems on both sides of the metal-insulator transition are found. Moreover, the variation of conductivity with temperature is very unusual with sigma(T) varying like T-alpha (1 < alpha < 1.5) in a nide temperature range from 7K to 700 K.

引用

页码：171 / 176

页数：6

共 30 条

[1]

AHLGREN M, 1996, IN PRESS P INT C RQ9

[2]

AHLGREN M, IN PRESS PHYS REV B

[3]

Belin E, 1995, PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON QUASICRYSTALS, P435

[4]

BERGER C, 1996, IN PRESS P INT C RQ9

[5]

BERGER C, 1994, LECT QUASICRYSTALS, V64, P463

[6] Low-temperature thermal properties of icosahedral Al-Re-Pd [J].

Chernikov, MA ;

Bianchi, A ;

Felder, E ;

Gubler, U ;

Ott, HR .

EUROPHYSICS LETTERS, 1996, 35 (06) :431-437

[7] Density of states in quasicrystals and approximants: Tunneling experiment on bare and oxidized surfaces [J].

Davydov, DN ;

Mayou, D ;

Berger, C ;

Gignoux, C ;

Neumann, A ;

Jansen, AGM ;

Wyder, P .

PHYSICAL REVIEW LETTERS, 1996, 77 (15) :3173-3176

[8]

DELAISSARDIERE GT, IN PRESS PHYS REV B

[9] SPIN AND QUANTUM INTERFERENCE EFFECTS IN HOPPING CONDUCTIVITY [J].

FRYDMAN, A ;

OVADYAHU, Z .

SOLID STATE COMMUNICATIONS, 1995, 94 (09) :745-749

[10]

Gignoux C, 1995, PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON QUASICRYSTALS, P452

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