Magnetotransport Study of the Canted Antiferromagnetic Phase in Bilayer $\nu =2$ Quantum Hall State

Abstract

Magnetotransport properties are investigated in the bilayer quantum Hall state at the total filling factor $\nu =2$. We measured the activation energy elaborately as a function of the total electron density and the density difference between the two layers. Our experimental data demonstrate clearly the emergence of the canted antiferromagnetic (CAF) phase between the ferromagnetic phase and the spin-singlet phase. The stability of the CAF phase is discussed by the comparison between experimental results and theoretical calculations using a Hartree-Fock approximation and an exact diagonalization study. The data reveal also an intrinsic structure of the CAF phase divided into two regions according to the dominancy between the intralayer and interlayer correlations.

6 pages, 7 figures

References in corpus (13)

• Realization of Bose-Einstein condensates in lower dimensions
• Rapidly Rotating Bose-Einstein Condensates in and near the Lowest Landau Level
• Phase Transition in ν=2 Bilayer Quantum Hall State
• Double-layer quantum Hall antiferromagnetism at filling fraction nu=2/(odd integer)
• Spin-Excitation-Instability-Induced Quantum Phase Transitions in Double-Layer Quantum Hall Systems
• Canted antiferromagnetic and spin singlet quantum Hall states in double-layer systems
• Broken Symmetry Ground States in ν=2 Bilayer Quantum Hall Systems
• Canted antiferromagnetic phase in a double quantum well in a tilted quantizing magnetic field
• Spin Bose Glass Phase in Bilayer Quantum Hall Systems at $\nu =2$
• Electromodulation of the bilayer $\nu$=2 quantum Hall phase diagram
• Bilayer Quantum Hall Systems at Filling Factor ν=2: An Exact Diagonalisation Study
• Interlayer Coherence in the $\nu =1$ and $\nu =2$ Bilayer Quantum Hall States
• Excitation spectrum of Bilayer $\nu =2$ Quantum Hall Systems

Cited by in corpus (13)

• NMR Evidence for Spin Canting in a Bilayer nu = 2 Quantum Hall System
• Entanglement Thermodynamics
• Transport in two-dimensional modulation doped semiconductor structures
• Observation of an in-plane magnetic-field-driven phase transition in a quantum Hall system with SU(4) symmetry
• Hilbert space and ground state structure of bilayer quantum Hall systems at $\nu =2/\lambda$
• The Study of Goldstone Modes in $\nu$=2 Bilayer Quantum Hall Systems
• Hilbert space structure of the low energy sector of U(N) quantum Hall ferromagnets and their classical limit
• Husimi function and phase-space analysis of bilayer quantum Hall systems at $\nu =2/\lambda$
• Spin Supercurrent in the Canted Antiferromagnetic Phase
• Double Nuclear Spin Relaxation in Hybrid Quantum Hall Systems
• Dicke Model for Quantum Hall Systems
• Nambu-Goldstone modes and the Josephson supercurrent in the bilayer quantum Hall system
• Microwave Imaging of Edge Conductivity in Graphene at Charge Neutrality and Quantum Hall States