Cargando…
Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB
Half-metallicity due to the coexistence of metallic nature for one spin component and insulating nature for the other is a base of spintronics devices, but was only achieved in few materials. From first-principles calculations, we demonstrate that a recently-synthesized two-dimensional organometalli...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4568493/ https://www.ncbi.nlm.nih.gov/pubmed/26365292 http://dx.doi.org/10.1038/srep14098 |
_version_ | 1782389923112812544 |
---|---|
author | Zhang, Xiaoming Zhao, Mingwen |
author_facet | Zhang, Xiaoming Zhao, Mingwen |
author_sort | Zhang, Xiaoming |
collection | PubMed |
description | Half-metallicity due to the coexistence of metallic nature for one spin component and insulating nature for the other is a base of spintronics devices, but was only achieved in few materials. From first-principles calculations, we demonstrate that a recently-synthesized two-dimensional organometallic framework of 1,3,5-tris(pyridyl)benzene and Cu atoms (Cu-TPyB) has robust half-metallicity. High electron velocity in one spin channel at Dirac point and a relatively large band gap in the other make the material meeting the demand of filtering the current into a single spin component. Moreover, spin-orbit coupling induces topologically nontrivial band gaps in the vicinity of the Fermi level, which are implementable for achieving quantum anomalous Hall effect in a low temperature range (<8 K). |
format | Online Article Text |
id | pubmed-4568493 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45684932015-09-23 Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB Zhang, Xiaoming Zhao, Mingwen Sci Rep Article Half-metallicity due to the coexistence of metallic nature for one spin component and insulating nature for the other is a base of spintronics devices, but was only achieved in few materials. From first-principles calculations, we demonstrate that a recently-synthesized two-dimensional organometallic framework of 1,3,5-tris(pyridyl)benzene and Cu atoms (Cu-TPyB) has robust half-metallicity. High electron velocity in one spin channel at Dirac point and a relatively large band gap in the other make the material meeting the demand of filtering the current into a single spin component. Moreover, spin-orbit coupling induces topologically nontrivial band gaps in the vicinity of the Fermi level, which are implementable for achieving quantum anomalous Hall effect in a low temperature range (<8 K). Nature Publishing Group 2015-09-14 /pmc/articles/PMC4568493/ /pubmed/26365292 http://dx.doi.org/10.1038/srep14098 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Zhang, Xiaoming Zhao, Mingwen Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title | Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title_full | Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title_fullStr | Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title_full_unstemmed | Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title_short | Robust half-metallicity and topological aspects in two-dimensional Cu-TPyB |
title_sort | robust half-metallicity and topological aspects in two-dimensional cu-tpyb |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4568493/ https://www.ncbi.nlm.nih.gov/pubmed/26365292 http://dx.doi.org/10.1038/srep14098 |
work_keys_str_mv | AT zhangxiaoming robusthalfmetallicityandtopologicalaspectsintwodimensionalcutpyb AT zhaomingwen robusthalfmetallicityandtopologicalaspectsintwodimensionalcutpyb |