Persistent currents and dissipation in narrow bilayer quantum Hall bars

Article

关键词: SPONTANEOUS INTERLAYER COHERENCE;    PHASE-TRANSITIONS;    SYSTEMS;   

DOI  :  10.1103/PhysRevB.64.201314

来源: SCIE

【 摘 要 】

Bilayer quantum Hall states support a flow of nearly dissipationless staggered current which can only decay through collective channels. We study the dominant finite-temperature dissipation mechanism which in narrow bars is driven by thermal nucleation of pseudospin solitons. We find the finite-temperature resistivity, predict the resulting staggered current-voltage characteristics, and calculate the associated zero-temperature critical staggered current and gate voltage.

【 授权许可】

Free