Transport measurement of two-dimensional electron system under ultra-high magnetic fields

被引：3

作者：

Inokuchi, T ^{[1
]}

Osada, T ^{[1
]}

Ikeda, S ^{[1
]}

Uchida, K ^{[1
]}

Kuraguchi, M ^{[1
]}

Ogasawara, A ^{[1
]}

Ohmichi, E ^{[1
]}

Miura, N ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 22卷 / 1-3期

关键词：

quantum hall effect; magnetotransport; ultra-high magnetic field;

D O I：

10.1016/j.physe.2003.12.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have developed the RF technique for transport measurement under pulsed ultra-high magnetic fields beyond 100 T. Using this RE system and the samples with modified Corbino geometry, we have successfully measured the transverse conductivity sigma(xx) of two-dimensional electron gas up to 100 T. In addition to the integer quantum Hall structures, we observed a structure corresponding to the 1/3 fractional quantum Hall effect (FQHE) around 80 T even at high temperatures (> 4.2 K) and even in the low-mobility samples. This fact suggests that the ultra-high magnetic field stabilizes the 1/3 FQHE state. (C) 2003 Published by Elsevier B.V.

引用

页码：381 / 384

页数：4

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