Mesoscopic Spin Hall Effect
نویسندگان
چکیده
منابع مشابه
Mesoscopic Spin Hall Effect in Multiprobe Semiconductor Bridges
We predict that pure spin current flowing through the transverse leads of quantumcoherent two-dimensional electron gas (2DEG), which is induced by conventional unpolarized charge current driven through the longitudinal leads, can be tuned by the Rashba spin-orbit (SO) interaction and will decay only when disorder is sufficiently strong (but before electrons become localized). Furthermore, the p...
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We predict that unpolarized charge current driven through the longitudinal leads attached to ballistic quantum-coherent two-dimensional electron gas 2DEG in semiconductor heterostructure will induce a pure spin current, which is not accompanied by any net charge flow, in the transverse voltage probes. Its magnitude can be tuned by the Rashba spin-orbit SO coupling and, moreover, it is resilient...
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A remarkable analogy is established between the well-known spin Hall effect and the polarization dependence of Rayleigh scattering of light in microcavities. This dependence results from the strong spin effect in elastic scattering of exciton polaritons: if the initial polariton state has a zero spin and is characterized by some linear polarization, the scattered polaritons become strongly spin...
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When a mesoscopic two dimensional four-terminal Hall cross bar with spin-orbit interaction (SOI) is subjected to a perpendicular uniform magnetic field B, both integer quantum Hall effect (IQHE) and mesoscopic spin Hall effect (MSHE) may exist when disorder strength W in the sample is weak. We have calculated the low field "phase diagram" of MSHE in the (B,W) plane for disordered samples in the...
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We show that pure spin Hall current, flowing out of a four-terminal two-dimensional electron gas (2DEG) within inversion asymmetric heterostructure, contains contributions from both the extrinsic mechanisms (spin-orbit-dependent scattering off impurities) and the intrinsic ones (due to the Rashba coupling). The extrinsic contribution vanishes in the weakly and strongly disordered limits, and th...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2007
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.98.196601