Photovoltaic infrared photoresponse of the high-mobility graphene quantum Hall system due to cyclotron resonance

被引：13

作者：

Masubuchi, Satoru ^{[1
,2
]}

Onuki, Masahiro ^{[1
]}

Arai, Miho ^{[1
]}

Yamaguchi, Takehiro ^{[1
]}

Watanabe, Kenji ^{[3
]}

Taniguchi, Takashi ^{[3
]}

Machida, Tomoki ^{[1
,2
,4
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

[2] Univ Tokyo, Inst Nano Quantum Informat Elect, Meguro Ku, Tokyo 1538505, Japan

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan

[4] PRESTO JST, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 12期

基金：

日本科学技术振兴机构;

关键词：

PHOTOCURRENT; TRANSPORT;

D O I：

10.1103/PhysRevB.88.121402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the infrared photoresponse of high-mobility graphene in high magnetic fields. Two types of photoresponse signals were observed that were due to photovoltaic and bolometric effects. The photovoltaic signal was observed in the quantum Hall regime, whereas the bolometric signal was dominant in the quantum Hall transition regime. The photovoltaic effect, which was induced by cyclotron resonance, was observable up to 180 K. The polarity of the photovoltaic photoresponse was shown to be systematically reversed on reversal of the applied magnetic field direction and measurement geometry, suggesting that the photovoltage signals were generated along the quantum Hall edge channel.

引用

页数：5

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