Quantum Hall Transitions in Field Induced Spin Density Wave Systems

Details Quantum Hall Transitions in Field Induced Spin Density Wave Systems Quantum Hall Transitions in Field Induced Spin Density Wave Systems

1999-07-12

arxiv.org/abs/cond-mat/9907170v1

Solid State Commun. 113, 213 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages; submitted to Solid State Communications

Scientific paper

10.1016/S0038-1098(99)00441-X

Field Induced Spin Density Wave (FISDW) systems exhibit coexistence phases between well defined quantum Hall plateau phases with even integers 2N and 2N'. We show that a disordered coexistence region accounts for the observed peaks in the longitudinal resistivity as the field varies between plateaux. It also results in a random spin mixing which yields two energy split extended states. The longitudinal resistance is expected to show peaks witha temperature (T) dependent width proportional to the kappa's power of T. The peak width should saturate below the non-nesting interlayer coupling of order 40 mK

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