Absence of scaling in the integer quantum hall effect

被引：54

作者：

Balaban, NQ ^{[1
]}

Meirav, U ^{[1
]}

Bar-Joseph, I ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.81.4967

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the conductivity peak in the transition region between the two lowest integer quantum Hall states using transmission measurements of edge magnetoplasmons. The width of the transition region is found to increase linearly with frequency but remains finite when extrapolated to zero frequency and temperature. Contrary to prevalent theoretical pictures, our data do not show the scaling characteristics of critical phenomena. These results suggest that a different mechanism governs the transition in our experiment. [S0031-9007(98)07743-6].

引用

页码：4967 / 4970

页数：4

共 24 条

[1] DIMENSIONAL RESONANCE OF THE TWO-DIMENSIONAL ELECTRON-GAS IN SELECTIVELY DOPED GAAS/ALGAAS HETEROSTRUCTURES [J].

ALLEN, SJ ;

STORMER, HL ;

HWANG, JCM .

PHYSICAL REVIEW B, 1983, 28 (08) :4875-4877

[2] 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

[3] Observation of the logarithmic dispersion of high-frequency edge excitations [J].

Balaban, NQ ;

Meirav, U ;

Shtrikman, H ;

Umansky, V .

PHYSICAL REVIEW B, 1997, 55 (20) :13397-13400

[4] Millimeterwave conductivity experiments regarding dynamical scaling of the integer quantum Hall effect [J].

Belitsch, W ;

Meisels, R ;

Kuchar, F ;

Hein, G ;

Pierz, K .

PHYSICA B-CONDENSED MATTER, 1998, 249 :119-122

[5] ABSENCE OF BACKSCATTERING IN THE QUANTUM HALL-EFFECT IN MULTIPROBE CONDUCTORS [J].

BUTTIKER, M .

PHYSICAL REVIEW B, 1988, 38 (14) :9375-9389

[6] TRANSPORT-PROPERTIES BETWEEN QUANTUM HALL PLATEAUS [J].

CHKLOVSKII, DB ;

LEE, PA .

PHYSICAL REVIEW B, 1993, 48 (24) :18060-18078

[7] EDGE MAGNETOPLASMONS IN SINGLE 2-DIMENSIONAL ELECTRON DISKS AT MICROWAVE-FREQUENCIES - DETERMINATION OF THE LATERAL DEPLETION LENGTH [J].

DAHL, C ;

MANUS, S ;

KOTTHAUS, JP ;

NICKEL, H ;

SCHLAPP, W .

APPLIED PHYSICS LETTERS, 1995, 66 (17) :2271-2273

[8]

Das Sarma S., 1997, PERSPECTIVES QUANTUM

[9] MICROWAVE FREQUENCY-DEPENDENCE OF INTEGER QUANTUM HALL-EFFECT - EVIDENCE FOR FINITE-FREQUENCY SCALING [J].

ENGEL, LW ;

SHAHAR, D ;

KURDAK, C ;

TSUI, DC .

PHYSICAL REVIEW LETTERS, 1993, 71 (16) :2638-2641

[10] FAR-INFRARED PHOTON-ASSISTED TRANSPORT THROUGH QUANTUM POINT-CONTACT DEVICES [J].

FENG, SC ;

HU, Q .

PHYSICAL REVIEW B, 1993, 48 (08) :5354-5365

← 1 2 3 →