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Proposal for quantum spin tomography in ferromagnet-normal conductors

P. Samuelsson, Arne Brataas
2010 Physical Review B  

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2010 pre-print arXiv:1002.2499v1 fatcat:gvd7w4enrfeyhmfmyiziqkmhfm
We present a theory for a complete reconstruction of non-local spin correlations in ferromagnet-normal conductors. This quantum spin tomography is based on cross correlation measurements of electric currents into ferromagnetic terminals with controllable magnetization directions. For normal injectors, non-local spin correlations are universal and strong. The correlations are suppressed by spin-flip scattering and, for ferromagnetic injectors, by increasing injector polarization.
doi:10.1103/physrevb.81.184422 fatcat:a6z6toidwbgqlksrcjawcnbwdq
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P. Samuelsson, Arne Brataas. "Proposal for quantum spin tomography in ferromagnet-normal conductors." Physical Review B 81.18 (2010)