Probability- and spin-current operators for effective Hamiltonians

Federico Bottegoni; Henri-Jean Drouhin; Guy Fishman; Jean-Eric Wegrowe

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Probability- and spin-current operators for effective Hamiltonians

机译：有效哈密顿量的概率和自旋电流算子

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摘要

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.

机译：我们基于有效哈密顿量的动量幂展开，给出了概率和自旋电流算子的系统构造。这些算子在与半导体异质结构有关的传输问题中起着至关重要的作用，特别是在考虑了自旋轨道相互作用的情况下。对于自旋电子学来说，无论动量功率如何，包括线性（Bychkov-Rashba）项和三次项（Dresselhaus或D'yakonov-Perel）项，结果都是有效的。

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来源
《Physical review》 |2012年第23期|p.235313.1-235313.7|共7页
作者
Federico Bottegoni; Henri-Jean Drouhin; Guy Fishman; Jean-Eric Wegrowe;
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作者单位

Ecole Polytechnique, LSI, CNRS and CEA/DSM/IRAMIS, Palaiseau, F-91128, France,Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;

Ecole Polytechnique, LSI, CNRS and CEA/DSM/IRAMIS, Palaiseau, F-91128, France;

Univ Paris-Sud, IEF, CNRS, Orsay, F-91405, France;

Ecole Polytechnique, LSI, CNRS and CEA/DSM/IRAMIS, Palaiseau, F-91128, France;

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正文语种 eng
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spin polarized transport in semiconductors; spin-orbit coupling, zeeman and stark splitting, jahn-teller effect; tunneling;

机译：半导体中的自旋极化传输;自旋轨道耦合;塞曼和斯塔克分裂;詹恩-泰勒效应;挖洞;

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机译：有效自旋哈密顿量中自旋置换算子系数的研究

Probability- and spin-current operators for effective Hamiltonians

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