Defect-free SnTe topological crystalline insulator nanowires grown by molecular beam epitaxy on graphene.
Sign Up to like & getrecommendations! Published in 2018 at "Nanoscale"
DOI: 10.1039/c8nr06096g
Abstract: SnTe topological crystalline insulator nanowires have been grown by molecular beam epitaxy on graphene/SiC substrates. The nanowires have a cubic rock-salt structure, they grow along the [001] crystallographic direction and have four sidewalls consisting of… read more here.
Keywords: nanowires grown; topological crystalline; snte topological; insulator nanowires ... See more keywords
Phase diagram and phonon-induced backscattering in topological insulator nanowires
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.045402
Abstract: We present an effective low-energy theory of electron-phonon coupling effects for clean cylindrical topological insulator nanowires. Acoustic phonons are modelled by isotropic elastic continuum theory with stress-free boundary conditions. We take into account the deformation… read more here.
Keywords: topological insulator; induced backscattering; phase diagram; phonon induced ... See more keywords
Theory of magnetotransport in shaped topological insulator nanowires
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DOI: 10.1103/physrevb.102.165105
Abstract: We show that shaped topological insulator (TI) nanowires, i.e. such that their cross-section radius varies along the wire length, can be tuned into a number of different transport regimes when immersed in a homogeneous coaxial… read more here.
Keywords: topological insulator; transport; shaped topological; cross section ... See more keywords
Disorder effects in topological insulator nanowires
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DOI: 10.1103/physrevb.104.054205
Abstract: Three-dimensional topological insulator (TI) nanowires with quantized surface subband spectra are studied as a main component of Majorana bound states (MBS) devices. However, such wires are known to have large concentration N ∼ 10 cm… read more here.
Keywords: topological insulator; disorder effects; dielectric constant; subband ... See more keywords
Majorana fermions in topological-insulator nanowires: From single superconducting nanowires to Josephson junctions
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DOI: 10.1103/physrevb.95.155420
Abstract: Signatures of Majorana-fermion bound states in one-dimensional topological-insulator (TI) nanowires with proximity-effect-induced superconductivity are studied. The phase diagram and energy spectra are calculated for single-TI nanowires, and it is shown that the nanowires can be… read more here.
Keywords: insulator nanowires; winding numbers; majorana fermions; fermions topological ... See more keywords
Thermoelectric current in topological insulator nanowires with impurities
Sign Up to like & getrecommendations! Published in 2018 at "Beilstein Journal of Nanotechnology"
DOI: 10.3762/bjnano.9.107
Abstract: In this paper we consider charge current generated by maintaining a temperature difference over a nanowire at zero voltage bias. For topological insulator nanowires in a perpendicular magnetic field the current can change sign as… read more here.
Keywords: insulator nanowires; nanowires impurities; current topological; thermoelectric current ... See more keywords