Large quantum rings in the ν > 1 quantum Hall regime

被引：8

作者：

Rasanen, E. ^{[1
,2
]}

Aichingen, M. ^{[2
,3
]}

机构：

[1] Free Univ Berlin, Inst Theoret Phys, D-14195 Berlin, Germany

[2] Johannes Kepler Univ Linz, Inst Theoret Phys, A-4040 Linz, Austria

[3] MathConsult GmbH, A-4040 Linz, Austria

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 02期

基金：

奥地利科学基金会;

关键词：

DOTS; OSCILLATIONS; STATES;

D O I：

10.1088/0953-8984/21/2/025301

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study computationally the ground-state properties of large quantum rings in the filling-factor nu > 1 quantum Hall regime. We show that the arrangement of electrons into different Landau levels leads to clear signatures in the total energies as a function of the magnetic field. In this context, we discuss possible approximations for the filling factor. in the system. We are able to characterize integer-nu states in quantum rings in an analogy with conventional quantum Hall droplets. We also find a partially spin-polarized state between nu = 2 and 3. Despite the specific topology of a quantum ring, this state is strikingly reminiscent of the recently found nu = 5/2 state in a quantum dot.

引用

页数：5

共 50 条

[31] Vortex-lattice structure and topological superconductivity in the quantum Hall regime [J].

Chaudhary, Gaurav ;

MacDonald, Allan H. .

PHYSICAL REVIEW B, 2020, 101 (02)

[32] Quantum Hall effect in quantum electrodynamics [J].

Penin, Alexander A. .

PHYSICAL REVIEW B, 2009, 79 (11)

[33] Quantized charge fractionalization at quantum Hall Y junctions in the disorder dominated regime [J].

Lin, Chaojing ;

Hashisaka, Masayuki ;

Akiho, Takafumi ;

Muraki, Koji ;

Fujisawa, Toshimasa .

NATURE COMMUNICATIONS, 2021, 12 (01)

[34] Zero-Bias Anomalies in Narrow Tunnel Junctions in the Quantum Hall Regime [J].

Jiang, P. ;

Chien, C. -C. ;

Yang, I. ;

Kang, W. ;

Baldwin, K. W. ;

Pfeiffer, L. N. ;

West, K. W. .

PHYSICAL REVIEW LETTERS, 2010, 105 (24)

[35] Manifestation of many-body interactions in the integer quantum Hall effect regime [J].

Oswald, Josef ;

Roemer, Rudolf A. .

PHYSICAL REVIEW B, 2017, 96 (12)

[36] Spin transition in the fractional quantum Hall regime: Effect of the extent of the wave function [J].

Vanovsky, V. V. ;

Khrapai, V. S. ;

Shashkin, A. A. ;

Pellegrini, V. ;

Sorba, L. ;

Biasiol, G. .

PHYSICAL REVIEW B, 2013, 87 (08)

[37] GaSb quantum rings in GaAs/AlxGa1-xAs quantum wells [J].

Hodgson, P. D. ;

Hayne, M. ;

Robson, A. J. ;

Zhuang, Q. D. ;

Danos, L. .

JOURNAL OF APPLIED PHYSICS, 2016, 119 (04)

[38] Domain Walls, Fusion Rules, and Conformal Field Theory in the Quantum Hall Regime [J].

Ardonne, Eddy .

PHYSICAL REVIEW LETTERS, 2009, 102 (18)

[39] Quantum energy teleportation in a quantum Hall system [J].

Yusa, Go ;

Izumida, Wataru ;

Hotta, Masahiro .

PHYSICAL REVIEW A, 2011, 84 (03)

[40] Quantum Hall ferromagnets [J].

Ezawa, Z. F. ;

Tsitsishvili, G. .

REPORTS ON PROGRESS IN PHYSICS, 2009, 72 (08)

← 1 2 3 4 5 →

Large quantum rings in the ν &gt; 1 quantum Hall regime

Large quantum rings in the ν > 1 quantum Hall regime