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Mesoscopic conductance effects in InMnAs structures

S. Lee·A. Trionfi·T. Schallenberg·H. Munekata·D. Natelson
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Abstract

Quantum corrections to the electrical conduction of magnetic semiconductors are comparatively unexplored. We report measurements of time-dependent universal conductance fluctuations (TDUCF) and magnetic field dependent universal conductance fluctuations (MFUCF) in micron-scale structures fabricated from two different In$_{1-x}$Mn$_{x}$As thin films. TDUCF and MFUCF increasing in magnitude with decreasing temperature are observed. At 4 K and below, TDUCF are suppressed at finite magnetic fields independent of field orientation.

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S. Lee, A. Trionfi, T. Schallenberg, H. Munekata, D. Natelson. 2006-12-27. Mesoscopic conductance effects in InMnAs structures. https://doi.org/10.1063/1.2432165

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