Wimmer, Michael and Lobenhofer, M. and Moser, Jürgen and Matos-Abiague, Alex and Schuh, Dieter and Wegscheider, Werner and Fabian, Jaroslav and Richter, Klaus and Weiss, Dieter (2009) Orbital effects of tunneling anisotropic magnetoresistance in Fe/GaAs/Au junctions. Physical Review B (PRB), rapid communication 80, p. 121301.
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We report experiments on epitaxially grown Fe/GaAs/Au tunnel junctions demonstrating that the tunneling anisotropic magnetoresistance (TAMR) effect can be controlled by a magnetic field. Theoretical modelling shows that the interplay of the orbital effects of a magnetic field and the Dresselhaus spin-orbit coupling in the GaAs barrier leads to an independent contribution to the TAMR effect with uniaxial symmetry, whereas the Bychkov-Rashba spin-orbit coupling does not play a role. The effect is intrinsic to barriers with bulk inversion asymmetry
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss|
Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
|Projects:||SFB 689: Spinphänomene in reduzierten Dimensionen|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Owner:||Prof. Dr. Jaroslav Fabian|
|Deposited On:||06 Aug 2009 12:01|
|Last Modified:||28 Oct 2009 12:54|