Nernst Response of the Landau Tubes in Graphite across the Quantum Limit

被引：14

作者：

Fauque, Benoit ^{[1
,2
]}

Zhu, Zengwei ^{[1
,3
]}

Murphy, Tim ^{[4
]}

Behnia, Kamran ^{[1
]}

机构：

[1] Ecole Super Phys & Chim Ind Ville Paris, LPEM UPMC CNRS, F-75005 Paris, France

[2] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

[3] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

[4] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 24期

关键词：

ELECTRONIC PHASE-TRANSITION; STRONG-MAGNETIC-FIELD; DENSITY-WAVE; MAGNETORESISTANCE;

D O I：

10.1103/PhysRevLett.106.246405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a study of the Nernst effect in graphite extended up to 45 T. The Nernst response sharply peaks when a Landau tube is squeezed inside the thermally fuzzy Fermi surface and presents a temperature-independent fixed point when the tube flattens to a single ring. Beyond the quantum limit, the onset of the field-induced phase transition leads to a drastic drop in the Nernst response signaling the sudden vanishing of Landau tubes. The magnitude of this drop suggests the destruction of multiple Landau tubes possibly as a result of simultaneous nesting of the electron and hole pockets.

引用

页数：4

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