Electromodulation of the bilayered v=2 quantum Hall phase diagram

被引：44

作者：

Brey, L ^{[1
]}

Demler, E

Das Sarma, S

机构：

[1] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

[2] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[3] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.83.168

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We make a number of precise experimental predictions for observing the various magnetic phases, and the quantum phase transitions between them, in the v = 2 bilayered quantum Hall system. In particular, we analyze: the effect of an external bias voltage on the quantum phase diagram, finding that a finite bias should readily enable the experimental observation of the recently predicted novel canted antiferromagnetic phase In transport and gin polarization measurements.

引用

页码：168 / 171

页数：4

共 17 条

[1] OPTICALLY PUMPED NMR EVIDENCE FOR FINITE-SIZE SKYRMIONS IN GAAS QUANTUM-WELLS NEAR LANDAU-LEVEL FILLING NU=1 [J].

BARRETT, SE ;

DABBAGH, G ;

PFEIFFER, LN ;

WEST, KW ;

TYCKO, R .

PHYSICAL REVIEW LETTERS, 1995, 74 (25) :5112-5115

[2] Interlayer magnetic coupling and the quantum Hall effect in multilayer electron systems [J].

Brey, L .

PHYSICAL REVIEW LETTERS, 1998, 81 (21) :4692-4695

[3] ELECTROMODULATION OF MAGNETOROTONS IN COUPLED QUASI-2-DIMENSIONAL ELECTRON GASES [J].

BREY, L ;

TEJEDOR, C .

PHYSICAL REVIEW B, 1991, 44 (19) :10676-10679

[4] Canted antiferromagnetic and spin-singlet quantum Hall states in double-layer systems [J].

Das Sarma, S ;

Sachdev, S ;

Zheng, L .

PHYSICAL REVIEW B, 1998, 58 (08) :4672-4693

[5] Double-layer quantum Hall antiferromagnetism at filling fraction v=2/m where m is an odd integer [J].

DasSarma, S ;

Sachdev, S ;

Zheng, L .

PHYSICAL REVIEW LETTERS, 1997, 79 (05) :917-920

[6] Hybridization of single- and double-layer behavior in a double-quantum-well structure [J].

Davies, AG ;

Barnes, CHW ;

Zolleis, KR ;

Nicholls, JT ;

Simmons, MY ;

Ritchie, DA .

PHYSICAL REVIEW B, 1996, 54 (24) :17331-17334

[7] Spin Bose-glass phase in bilayer quantum Hall systems at v=2 [J].

Demler, E ;

Das Sarma, S .

PHYSICAL REVIEW LETTERS, 1999, 82 (19) :3895-3898

[8]

DEMLER E, IN PRESS

[9] Correlations, compressibility, and capacitance in double-quantum-well systems in the quantum Hall regime [J].

Jungwirth, T ;

MacDonald, AH .

PHYSICAL REVIEW B, 1996, 53 (15) :9943-9951

[10] Ultraslow electron spin dynamics in GaAs quantum wells probed by optically pumped NMR [J].

Kuzma, NN ;

Khandelwal, P ;

Barrett, SE ;

Pfeiffer, LN ;

West, KW .

SCIENCE, 1998, 281 (5377) :686-690

← 1 2 →