Orbital effects on tunneling anisotropic magnetoresistance in Fe/GaAs/Au junctions

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 12, 2009, Pages

  Wimmer, M ^a   Lobenhofer, M ^a   Moser, J ^a   Matos Abiague, A ^a   Schuh, D ^a   Wegscheider, W ^a   Fabian, J ^a   Richter, K ^a   Weiss, D ^a  

^a UNIVERSITY OF REGENSBURG   (Germany)

Author keywords

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Indexed keywords

EID: 70350650541     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.121301     Document Type: Article

References (27)

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25. The gauge A (z) does not allow for plane-wave solutions in the contacts. Hence, we switch off B away from the barrier. Since the cyclotron radius in Fe and Au is much larger than any relevant length scale (lcycl ≈1.5 μm at 5 T), the exact position of this switching is not important.
26. a is chosen very small to accurately approximate the δ function of Eq. 3 by a rectangular function with unit area and width 2a, centered at the Fe/GaAs-interface.
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