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Título: | Electromagnetic absorption of quasi-1D Majorana nanowires |
Autor: | Osca, Javier CSIC; Serra, Llorenç CSIC ORCID | Palabras clave: | Electromagnetic absorption Majorana modes Semiconductor wires |
Fecha de publicación: | dic-2015 | Editor: | John Wiley & Sons | Citación: | Physica Status Solidi C 12(12): 1409-1411 (2015) | Resumen: | We calculate the electromagnetic absorption cross section of long and narrow nanowires, in the so-called quasi-1D limit. We consider only two transverse bands and compute the dipole absorption cross section taking into account quasiparticle transitions from negative to positive energy eigenstates of the Bogoliubov-de Gennes Hamiltonian. The presence of the zero energy (Majorana) state manifests in the different absorption spectra for x (parallel) and y (transverse) polarizations of the electromagnetic field. In the y -polarized case, the Majorana state causes a low energy absorption plateau extending from mid-gap up to full-gap energy. Increasing further the energy, the plateau is followed by a region of enhanced absorption due to transitions across the full gap. For x polarization the low energy absorption plateau is not observed. (© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim). | Versión del editor: | http://dx.doi.org/10.1002/pssc.201510131 | URI: | http://hdl.handle.net/10261/133490 | DOI: | 10.1002/pssc.201510131 | Identificadores: | issn: 1862-6351 e-issn: 1610-1642 |
Aparece en las colecciones: | (IFISC) Artículos |
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majorana_nanowires_OSca.pdf | 244,37 kB | Adobe PDF | Visualizar/Abrir |
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