Highly anisotropic transport in the integer quantum Hall effect

Article

关键词: CHARGE-DENSITY-WAVE;    2-DIMENSIONAL ELECTRON LIQUID;    STATE;    INSTABILITY;    PHASE;    FIELD;    GAS;   

DOI  :  10.1103/PhysRevB.64.121305

来源: SCIE

【 摘 要 】

At very large tilt of the magnetic (B) field with respect to the plane of a two-dimensional electron system the transport in the integer quantum Hall regime at nu =4, 6, and 8 becomes strongly anisotropic when two electrical subbands are occupied. At these filling factors the usual deep minima in the magnetoresistance occur for the current flowing perpendicular to the in-plane B field direction but develop into strong maxima for the current flowing parallel to the in-plane B field. The origin of this anisotropy is unknown but resembles the recently observed anisotropy at half-filled Landau levels.

【 授权许可】

Free