2018
DOI: 10.1103/physrevb.98.035407
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Spin relaxation in wurtzite nanowires

Abstract: We theoretically investigate the D'yakonov-Perel' spin relaxation properties in diffusive wurtzite semiconductor nanowires and their impact on the quantum correction to the conductivity. Although the lifetime of the long-lived spin states is limited by the dominant k-linear spin-orbit contributions in the bulk, these terms show almost no effect in the finite-size nanowires. Here, the spin lifetime is essentially determined by the small k-cubic spin-orbit terms and nearly independent of the wire radius. At the … Show more

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Cited by 12 publications
(15 citation statements)
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“…In turn, this is the main source of the spin-orbit coupling, acting via the Rashba effect. 5,[28][29][30][31][32][33][34] Such an asymmetry causes the pinning of the spin-orbit field in the plane of the substrate, as demonstrated for nanowire quantum dots and for Majorana nanowires. 24,29,35 Additionally, the lack of spatial inversion symmetry in the crystal structure can introduce another spin-orbit contribution, namely the Dresselhaus SOI .…”
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confidence: 95%
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“…In turn, this is the main source of the spin-orbit coupling, acting via the Rashba effect. 5,[28][29][30][31][32][33][34] Such an asymmetry causes the pinning of the spin-orbit field in the plane of the substrate, as demonstrated for nanowire quantum dots and for Majorana nanowires. 24,29,35 Additionally, the lack of spatial inversion symmetry in the crystal structure can introduce another spin-orbit contribution, namely the Dresselhaus SOI .…”
mentioning
confidence: 95%
“…24,29,35 Additionally, the lack of spatial inversion symmetry in the crystal structure can introduce another spin-orbit contribution, namely the Dresselhaus SOI . 25,[31][32][33][34]36 Furthermore, local internal electric fields, caused by the Fermi level pinning at the nanowire surface, can also give extra Rashba contributions. 23,34 In this work, we take a different perspective and investigate the SOI in freely suspended nanowires which are not expected to display any intrinsic electrostatic asymmetry.…”
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confidence: 99%
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“…to extract the spin-orbit interaction for InAs nanowire with zinc-blend (111) and (100) [32,33] and wurtzite (0001) structures [34]. They assumed various shapes in which electron can propagate in nanowires, such as a tubular shape with finite thickness for zinc-blend nanowires [32] and a three-dimensional cylinder shape for zinc-blend [33] and for wurtzite nanowires [34].…”
Section: Kammermeier Et Al Reported Models That Can Analyze Weak Loca...mentioning
confidence: 99%
“…L so /4. 34 The strongly suppressed spin relaxation in the diffusive 1D limit was found to be governed by the cubic Dresselhaus term, which is almost negligible for spin relaxation in the bulk. The corresponding spin relaxation rate c 1D s is predicted to be anisotropic with c 1D s;?…”
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confidence: 95%