Neumaier, D. and Wagner, K. and Wurstbauer, U. and Reinwald, M. and Wegscheider, W. and Weiss, D. (2008) Phase coherent transport in (Ga, Mn) as. NEW JOURNAL OF PHYSICS, 10: 055016. ISSN 1367-2630,
Full text not available from this repository. (Request a copy)Abstract
Quantum interference effects and resulting quantum corrections of the conductivity have been intensively studied in disordered conductors over the last few decades. The knowledge of phase coherence lengths and underlying dephasing mechanisms are crucial in understanding quantum corrections to the resistivity in different material systems. Due to the internal magnetic field and the associated breaking of time-reversal symmetry quantum interference effects in ferromagnetic materials have scarcely been explored. Below, we describe the investigation of phase coherent transport phenomena in the newly discovered ferromagnetic semiconductor (Ga, Mn) As. We explore universal conductance fluctuations in mesoscopic (Ga, Mn) As wires and rings, the Aharonov-Bohm effect in nanoscale rings and weak localization in arrays of wires, made of the ferromagnetic semiconductor material. These experiments allow to probe the phase coherence length L(phi) and the spin flip length L(SO) as well as the temperature dependence of dephasing.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | III-V SEMICONDUCTORS; WEAK-LOCALIZATION; THIN-FILMS; FERROMAGNETIC SEMICONDUCTORS; MAGNETOTRANSPORT PROPERTIES; CONDUCTANCE FLUCTUATIONS; MAGNETIC-FIELD; (GA,MN)AS; MAGNETORESISTANCE; SCATTERING; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Nov 2020 05:41 |
| Last Modified: | 03 Nov 2020 05:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30885 |
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