Observation of Neutral Modes In The Fractional Quantum Hall Effect Regime

被引：1

作者：

Bid, Aveek ^{[1
]}

Ofek, N. ^{[1
]}

Inoue, H. ^{[1
]}

Heiblum, M. ^{[1
]}

Kane, C. L. ^{[2
]}

Umansky, V. ^{[1
]}

Mahalu, D. ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Condensed Matter Phys, Braun Ctr Submicron Res, IL-76100 Rehovot, Israel

[2] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS | 2011年 / 1399卷

关键词：

Neutral mode; fractional quantum Hall effect; non-abelian state; STATES;

D O I：

10.1063/1.3666537

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report on the first experimental observation of neutral modes in particle-hole conjugate fractional quantum Hall states using shot noise measurements. The presence of the neutral modes, in addition to producing excess noise in a quantum point contact (QPC), was seen to affect strongly the charge of the tunneling quasiparticles of the charge mode in the QPC and to increase their apparent temperature. The observation of an upstream neutral mode in the 5/2 state may constitute an added indication of its non-abelian nature.

引用

页数：2

共 9 条

[1] EDGE MAGNETOPLASMONS IN THE TIME DOMAIN [J].

ASHOORI, RC ;

STORMER, HL ;

PFEIFFER, LN ;

BALDWIN, KW ;

WEST, K .

PHYSICAL REVIEW B, 1992, 45 (07) :3894-3897

[2] Shot Noise and Charge at the 2/3 Composite Fractional Quantum Hall State [J].

Bid, Aveek ;

Ofek, N. ;

Heiblum, M. ;

Umansky, V. ;

Mahalu, D. .

PHYSICAL REVIEW LETTERS, 2009, 103 (23)

[3]

Das Sarma S., 1997, PERSPECTIVE QUANTUM

[4] COMPOSITE EDGES IN THE V=2/3 FRACTIONAL QUANTUM HALL-EFFECT [J].

JOHNSON, MD ;

MACDONALD, AH .

PHYSICAL REVIEW LETTERS, 1991, 67 (15) :2060-2063

[5] Quantized thermal transport in the fractional quantum Hall effect [J].

Kane, CL ;

Fisher, MPA .

PHYSICAL REVIEW B, 1997, 55 (23) :15832-15837

[6] Particle-hole symmetry and the ν=5/2 Quantum Hall state [J].

Lee, Sung-Sik ;

Ryu, Shinsei ;

Nayak, Chetan ;

Fisher, Matthew P. A. .

PHYSICAL REVIEW LETTERS, 2007, 99 (23)

[7] Particle-hole symmetry and the pfaffian state [J].

Levin, Michael ;

Halperin, Bertrand I. ;

Rosenow, Bernd .

PHYSICAL REVIEW LETTERS, 2007, 99 (23)

[8] EDGE STATES IN THE FRACTIONAL-QUANTUM-HALL-EFFECT REGIME [J].

MACDONALD, AH .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :220-223

[9] CHIRAL LUTTINGER LIQUID AND THE EDGE EXCITATIONS IN THE FRACTIONAL QUANTUM HALL STATES [J].

WEN, XG .

PHYSICAL REVIEW B, 1990, 41 (18) :12838-12844

← 1 →