Canted antiferromagnetic phase in a double quantum well in a tilted quantizing magnetic field

Abstract

We investigate the double-layer electron system in a parabolic quantum well at filling factor $\nu =2$ in a tilted magnetic field using capacitance spectroscopy. The competition between two ground states is found at the Zeeman splitting appreciably smaller than the symmetric-antisymmetric splitting. Although at the transition point the system breaks up into domains of the two competing states, the activation energy turns out to be finite, signaling the occurrence of a new insulator-insulator quantum phase transition. We interpret the obtained results in terms of a predicted canted antiferromagnetic phase.

4 pages, 3 figures included, accepted to PRL

References in corpus (8)

• 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
• Magnetic Anisotropy in Quantum Hall Ferromagnets
• Spin Bose Glass Phase in Bilayer Quantum Hall Systems at $\nu =2$
• Electromodulation of the bilayer $\nu$=2 quantum Hall phase diagram
• Hybridization of electron subbands in a double quantum well at quantizing magnetic field

Cited by in corpus (28)

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• Direct measurements of the fractional quantum Hall effect gaps
• Spontaneous Symmetry Breaking and Exotic Quantum Order in Integer Quantum Hall Systems under a Tilted Magnetic Field
• Spin effects in the magneto-drag between double quantum wells
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• Magnetotransport Study of the Canted Antiferromagnetic Phase in Bilayer $\nu =2$ Quantum Hall State
• Multiple magnon modes in the Co${}_3$Sn${}_2$S${}_2$ Weyl semimetal candidate
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• Separately contacted edge states at high imbalance in the integer and fractional quantum Hall effect regime
• Canted phase in double quantum dots
• Interaction and coherence in 2D bilayers
• Valley effects on the fractions in an ultrahigh mobility SiGe/Si/SiGe two-dimensional electron system
• Disordered electron liquid in double quantum well heterostructures: Renormalization group analysis and dephasing rate
• Excitation spectrum of Bilayer $\nu =2$ Quantum Hall Systems
• $\nu =2$ Bilayer Quantum Hall System in Tilted Magnetic Field
• Spin ordering: two different scenarios for the single and double layer structures in the fractional and integer quantum Hall effect regimes
• Spin transition in the fractional quantum Hall regime: Effect of extent of the wave function
• The Study of Goldstone Modes in $\nu$=2 Bilayer Quantum Hall Systems
• Spin Supercurrent in the Canted Antiferromagnetic Phase
• Possible Jahn-Teller effect in Si-inverse layers
• Spin Dynamics of a Canted Antiferromagnet in a Magnetic Field
• Nambu-Goldstone modes and the Josephson supercurrent in the bilayer quantum Hall system
• Manifestation of the bulk phase transition in the edge energy spectrum in a two dimensional bilayer electron system
• Shifting the quantum Hall plateau level in a double layer electron system
• Interlayer current near the edge of an InAs/GaSb double quantum well in proximity with a superconductor