Paired states in the even integer quantum Hall effect

Article

关键词: LANDAU-LEVEL;    SYSTEMS;    PHASE;    GAS;    SUPERCONDUCTIVITY;    INSULATOR;   

DOI  :  10.1103/PhysRevB.53.R13275

来源: SCIE

【 摘 要 】

A type of quantum Hall state requiring nonperturbative Landau-level mixing is argued to arise at low electron density. In these states, up- and down-spin electrons pair to form spinless bosons that condense into a bosonic quantum Hall state. We show that a BCS instability arising in two-component Hall metals stabilizes this paired state at nu=2. We discuss various experimental implications including a new global phase diagram for the integral quantum Hall effect with spin.

【 授权许可】

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