Probability- and spin-current operators for effective Hamiltonians

Abstract : We present a systematic construction of the probability-and spin-current operators, based on a momentum power expansion of effective Hamiltonians. These operators play an essential role in transport problems related to semiconductor heterostructures, in particular when spin-orbit interaction is taken into account. The result, valid whatever the momentum power and including the linear (Bychkov-Rashba) term as well as the cubic (Dresselhaus or D'yakonov-Perel) term, is of special importance for spintronics.
keyword : SEMICONDUCTORS
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Journal articles
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Submitted on : Thursday, September 25, 2014 - 2:33:59 PM
Last modification on : Wednesday, March 27, 2019 - 4:26:01 PM

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Federico Bottegoni, H. -J. Drouhin, Guy Fishman, J. -E. Wegrowe. Probability- and spin-current operators for effective Hamiltonians. Physical Review B : Condensed matter and materials physics, American Physical Society, 2012, 85, pp.235313. ⟨10.1103/PhysRevB.85.235313⟩. ⟨hal-01068335⟩

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