Mesoscopic conductance effects in InMnAs structures

Details Mesoscopic conductance effects in InMnAs structures Mesoscopic conductance effects in InMnAs structures

2006-08-01

arxiv.org/abs/cond-mat/0608036v2

Appl. Phys. Lett. 90, 032105 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 3+2 figures, 1 table; Appl. Phys. Lett. (in press)

Scientific paper

10.1063/1.2432165

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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