Session Z32: Focus Session: Magnetoresistance and Spin-dependent Transport
11:15 AM–1:51 PM, Friday, March 20, 2009
Room: 336
Sponsoring Units:
GMAG DMP FIAP
Chair: Kiran Thadani, Cornell University
Abstract ID: BAPS.2009.MAR.Z32.5
Abstract: Z32.00005 : Spin-Dependent Electronic Transport in Fe/MnAs/Fe Structures
12:03 PM–12:15 PM
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Abstract 
Authors:
Kyung-Yeon Kim
(Department of Physics and IPAP, Yonsei University)
Hyoung Joon Choi
(Department of Physics and IPAP, Yonsei University)
We have performed first-principles calculations of electronic structures and tunneling magnetoresistance of Fe/MnAs/Fe structures, which are junctions of two semi-infinite metals and a half-metal placed between them. The electronic structures are described by the Kohn-Sham density functional theory, with local spin density approximation, norm-conserving semicore pseudopotentials, and pseudo-atomic orbital basis set. The tunneling magnetoresistance is obtained by using a scattering- state method, considering different configurations of the magnetization. This work was supported by the KRF (KRF-2007-314- C00075) and by the KOSEF Grant No. R01-2007-000-20922-0. Computational resources have been provided by KISTI Supercomputing Center (KSC-2008-S02-0004).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.MAR.Z32.5