Huge magnetoresistance effect of highly oriented pyrolytic graphite

被引：4

作者：

Du, YW ^{[1
]}

Wang, ZM

Ni, G

Xing, DY

Xu, QY

机构：

[1] Nanjing Univ, State Key Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Lab Electron Microscopy, Beijing 100080, Peoples R China

来源：

ACTA PHYSICA SINICA | 2004年 / 53卷 / 04期

关键词：

magnetoresistance; graphite;

D O I：

10.7498/aps.53.1191

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Graphite is a quasi-two-dimensional semimetal. However, for usual graphite the magnetoresistance is not so high due to its small crystal size and no prefer-red orientation. Huge positive magnetoresistance up to 85300% at 4.2 K and 4950% at 300 K under 8.15 T magnetic field was found in highly oriented pyrolytic graphite. The mechanism of huge positive magnetoresistance is not only due to ordinary magnetoresistance but also due to magnetic-field-driven semimetal-insulator transition.

引用

页码：1191 / 1194

页数：4

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