Spin Bose-Glass Phase in Bilayer Quantum Hall Systems atν<mml:mspace/>=<mml:mspace/>2

1998/11/04 by Eugene Demler, S. Das Sarma · 4 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.82.3895

4 pages, 4 eps figures

arxiv created 1998/11/04 · openalex publication_date 1999/05/10 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We develop an effective spin theory to describe magnetic properties of the \ensuremathν\phantom\rule0ex0ex=\phantom\rule0ex0ex2 quantum Hall bilayer systems. In the absence of disorder this theory agrees with the microscopic Hartree-Fock calculations, and for finite disorder it predicts the existence of a novel spin Bose-glass phase. The Bose glass is characterized by the presence of domains of canted antiferromagnetic phase with zero average antiferromagnetic order and short range correlations. It has infinite antiferromagnetic transverse susceptibility and finite longitudinal spin susceptibility. Transition from the canted antiferromagnetic phase to the spin Bose-glass phase is characterized by a universal value of the spin conductance.

Citations

• Canted antiferromagnetic and spin-singlet quantum Hall states in double-layer systems

Cited by

• SU(4)skyrmions and activation energy anomaly in bilayer quantum Hall systems
• The study of Goldstone modes in ν = 2 bilayer quantum Hall systems
• Spin supercurrent in the canted antiferromagnetic phase
• Excitation spectrum of bilayer ν=2 quantum Hall systems