Pseudospin transfer torques in semiconductor electron bilayers

2012/01/27 by Youngseok Kim, Young‐Seok Kim, Allan H. MacDonald +2
Chemistry · Engineering · Physics and Astronomy · #Amplitude #Chemistry #Condensed matter physics #Electron #Electron transfer #Electron transport chain #Magnetic field #Molecular Junctions and Nanostructures #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Quasiparticle #Semiconductor #Semiconductor materials and devices #Superconductivity #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.85.165424

published as Phys. Rev. B 85, 165424 (2012) · 9 pages, 7 figures

arxiv created 2012/01/27 · openalex publication_date 2012/04/12 · arxiv updated 2018/04/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We use self-consistent quantum transport theory to investigate the influence of electron-electron interactions on interlayer transport in semiconductor electron bilayers in the absence of an external magnetic field. We conclude that, even though spontaneous pseudospin order does not occur at zero field, interaction-enhanced quasiparticle tunneling amplitudes and pseudospin transfer torques do alter tunneling I-V characteristics, and can lead to time-dependent response to a dc bias voltage.

Citations

• Observation of Quantized Hall Drag in a Strongly Correlated Bilayer Electron System
• Resistance Spikes and Domain Wall Loops in Ising Quantum Hall Ferromagnets
• Current-induced order parameter dynamics: Microscopic theory applied toCo∕Cu∕Cospin valves
• Coherent tunneling in exciton condensates of bilayer quantum Hall systems
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• Renormalization-group approach to interacting fermions
• Room-temperature superfluidity in graphene bilayers
• Resonantly Enhanced Tunneling in a Double Layer Quantum Hall Ferromagnet
• Tunneling Conductance Between Parallel Two Dimensional Electron Systems