Dynamical polarization of nuclear spins by acceptor-bound holes in a zinc-blende semiconductor

K. V. Kavokin; A. V. Koudinov

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Dynamical polarization of nuclear spins by acceptor-bound holes in a zinc-blende semiconductor

机译：闪锌矿半导体中受受体束缚的空穴对核自旋的动态极化

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The ground state of an acceptor-bound hole in a zinc-blende semiconductor is formed by four eigenstates of the total angular momentum, which is a vector sum of spin and orbital moment of the hole. As a result, the hyperfine interaction of the hole with lattice nuclei becomes anisotropic and coordinate dependent. We develop a theory of dynamic polarization of nuclear spins by the acceptor-bound hole, giving full account for its complex spin structure. The rate of hole-nuclear flip-flop transitions is shown to depend on the angle between the total angular momentum of the hole and the position vector of the nucleus with respect to the acceptor center. The resulting spatially inhomogeneous spin polarization of nuclei gives rise to nonequidistant spin splitting of the hole, which can be detected by methods of optical or microwave spectroscopy.

机译：闪锌矿型半导体中受受体束缚的空穴的基态由总角动量的四个本征态形成，这是空穴自旋和轨道矩的矢量和。结果，空穴与晶格核的超精细相互作用变得各向异性并且取决于坐标。我们开发了一个受受体束缚的空穴使核自旋动态极化的理论，充分考虑了其复杂的自旋结构。空穴-核触发器转换的速率显示为取决于空穴的总角动量与核相对于受体中心的位置矢量之间的角度。所产生的原子核在空间上不均匀的自旋极化导致空穴的自旋分裂不均等，这可以通过光学或微波光谱法进行检测。

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来源
《Physical review》 |2013年第23期|235202.1-235202.9|共9页
作者
K. V. Kavokin; A. V. Koudinov;
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作者单位

A. F. Ioffe Physico-Technical Institute of RAS, 1940 21st.-Petersburg, Russia,Spin Optics Laboratory, St.-Petersburg State University, 198504 St.-Petersburg, Russia;

A. F. Ioffe Physico-Technical Institute of RAS, 1940 21st.-Petersburg, Russia,Spin Optics Laboratory, St.-Petersburg State University, 198504 St.-Petersburg, Russia;

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spin relaxation and scattering;

机译：自旋弛豫和散射;

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7. Dynamical polarization of nuclear spins by acceptor-bound holes in a zinc blende semiconductor [O] . Kavokin, K. V., Koudinov, A. V. 2013

机译：核自旋的动态极化由受体束缚空穴引起闪锌矿半导体

Dynamical polarization of nuclear spins by acceptor-bound holes in a zinc-blende semiconductor

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