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Circular dichroism of chiral Majorana states
Background: Majorana states in condensed matter devices may be of a localized nature, such as in hybrid semiconductor/superconductor nanowires, or chirally propagating along the edges such as in hybrid 2D quantum-anomalous Hall/superconductor structures. Results: We calculate the circular dichroism...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942379/ https://www.ncbi.nlm.nih.gov/pubmed/29765796 http://dx.doi.org/10.3762/bjnano.9.110 |
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author | Osca, Javier Serra, Llorenç |
author_facet | Osca, Javier Serra, Llorenç |
author_sort | Osca, Javier |
collection | PubMed |
description | Background: Majorana states in condensed matter devices may be of a localized nature, such as in hybrid semiconductor/superconductor nanowires, or chirally propagating along the edges such as in hybrid 2D quantum-anomalous Hall/superconductor structures. Results: We calculate the circular dichroism due to chiral Majorana states in a hybrid structure made of a quantum-anomalous Hall insulator and a superconductor. The optical absorption of chiral Majorana states is characterized by equally spaced absorption peaks of both positive and negative dichroism. In the limit of a very long structure (a 2D ribbon) peaks of a single sign are favored. Conclusion: Circular-dichroism spectroscopy of chiral Majorana states is suggested as a relevant probe for these peculiar states of topological matter. |
format | Online Article Text |
id | pubmed-5942379 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-59423792018-05-15 Circular dichroism of chiral Majorana states Osca, Javier Serra, Llorenç Beilstein J Nanotechnol Full Research Paper Background: Majorana states in condensed matter devices may be of a localized nature, such as in hybrid semiconductor/superconductor nanowires, or chirally propagating along the edges such as in hybrid 2D quantum-anomalous Hall/superconductor structures. Results: We calculate the circular dichroism due to chiral Majorana states in a hybrid structure made of a quantum-anomalous Hall insulator and a superconductor. The optical absorption of chiral Majorana states is characterized by equally spaced absorption peaks of both positive and negative dichroism. In the limit of a very long structure (a 2D ribbon) peaks of a single sign are favored. Conclusion: Circular-dichroism spectroscopy of chiral Majorana states is suggested as a relevant probe for these peculiar states of topological matter. Beilstein-Institut 2018-04-16 /pmc/articles/PMC5942379/ /pubmed/29765796 http://dx.doi.org/10.3762/bjnano.9.110 Text en Copyright © 2018, Osca and Serra https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Osca, Javier Serra, Llorenç Circular dichroism of chiral Majorana states |
title | Circular dichroism of chiral Majorana states |
title_full | Circular dichroism of chiral Majorana states |
title_fullStr | Circular dichroism of chiral Majorana states |
title_full_unstemmed | Circular dichroism of chiral Majorana states |
title_short | Circular dichroism of chiral Majorana states |
title_sort | circular dichroism of chiral majorana states |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5942379/ https://www.ncbi.nlm.nih.gov/pubmed/29765796 http://dx.doi.org/10.3762/bjnano.9.110 |
work_keys_str_mv | AT oscajavier circulardichroismofchiralmajoranastates AT serrallorenc circulardichroismofchiralmajoranastates |