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Negative tunneling magneto-resistance in quantum wires with strong spin–orbit coupling
2015
Journal of Physics: Condensed Matter
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We consider a two-dimensional magnetic tunnel junction of the FM/I/QW(FM+SO)/I/N structure, where FM, I and QW(FM+SO) stand for a ferromagnet, an insulator and a quantum wire (QW) with both magnetic ordering and Rashba spin-orbit (SOC), respectively. The tunneling magneto-resistance (TMR) exhibits strong anisotropy and switches sign as the polarization direction varies relative to the QW axis, due to interplay among the one-dimensionality, the magnetic ordering, and the strong SOC of the QW.
doi:10.1088/0953-8984/27/25/255002
pmid:26020591
fatcat:6v3cnf5t55g7tfcd6bcbw4wfqi