Sign reversal of drag in bilayer systems with in-plane periodic potential modulation

Article

关键词: 2-DIMENSIONAL ELECTRON-SYSTEMS;    MAGNETO-COULOMB DRAG;    MUTUAL FRICTION;    HOLE TRANSPORT;    QUANTUM-WELLS;    HETEROSTRUCTURES;    GASES;    FIELD;   

DOI  :  10.1103/PhysRevB.66.201304

来源: SCIE

【 摘 要 】

We develop a theory for describing frictional drag in bilayer systems with in-plane periodic potential modulations, and use it to investigate the drag between bilayer systems in which one of the layers is modulated in one direction. At low temperatures, as the density of carriers in the modulated layer is changed, we show that it is possible for the transresistivity component in the direction of modulation to change its sign. We also give a physical explanation for this behavior.

【 授权许可】

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