Ferromagnetism in two-dimensional hole-doped SnO
Hole-doped monolayer SnO has been recently predicted to be a ferromagnetic material, for a hole density typically above 5x1013/cm2. The possibility to induce a hole-doped stable ferromagnetic order in this two-dimensional material, either by intrinsic or extrinsic defects, is theoretically studied,...
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doaj-5b7a9415be8344c9aaaae4b43716a0272020-11-25T00:18:45ZengAIP Publishing LLCAIP Advances2158-32262018-05-0185055010055010-1010.1063/1.5025272040805ADVFerromagnetism in two-dimensional hole-doped SnOM. Houssa0K. Iordanidou1G. Pourtois2V. V. Afanas’ev3A. Stesmans4Semiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, B-3001 Leuven, BelgiumSemiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, B-3001 Leuven, Belgiumimec, Kapeldreef 75, B-3001 Leuven, BelgiumSemiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, B-3001 Leuven, BelgiumSemiconductor Physics Laboratory, Department of Physics and Astronomy, University of Leuven, B-3001 Leuven, BelgiumHole-doped monolayer SnO has been recently predicted to be a ferromagnetic material, for a hole density typically above 5x1013/cm2. The possibility to induce a hole-doped stable ferromagnetic order in this two-dimensional material, either by intrinsic or extrinsic defects, is theoretically studied, using first-principles simulations. Sn vacancies and Sn vacancy-hydrogen complexes are predicted to be shallow acceptors, with relatively low formation energies in SnO monolayers grown under O-rich conditions. These defects produce spin-polarized gap states near the valence band-edge, potentially stabilizing the ferromagnetic order in 2D SnO. Hole-doping resulting from substitutional doping is also investigated. Among the considered possible dopants, As, substituting O, is predicted to produce shallow spin-polarized gap states near the valence band edge, also potentially resulting in a stable ferromagnetic order in SnO monolayers.http://dx.doi.org/10.1063/1.5025272 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Houssa K. Iordanidou G. Pourtois V. V. Afanas’ev A. Stesmans |
spellingShingle |
M. Houssa K. Iordanidou G. Pourtois V. V. Afanas’ev A. Stesmans Ferromagnetism in two-dimensional hole-doped SnO AIP Advances |
author_facet |
M. Houssa K. Iordanidou G. Pourtois V. V. Afanas’ev A. Stesmans |
author_sort |
M. Houssa |
title |
Ferromagnetism in two-dimensional hole-doped SnO |
title_short |
Ferromagnetism in two-dimensional hole-doped SnO |
title_full |
Ferromagnetism in two-dimensional hole-doped SnO |
title_fullStr |
Ferromagnetism in two-dimensional hole-doped SnO |
title_full_unstemmed |
Ferromagnetism in two-dimensional hole-doped SnO |
title_sort |
ferromagnetism in two-dimensional hole-doped sno |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2018-05-01 |
description |
Hole-doped monolayer SnO has been recently predicted to be a ferromagnetic material, for a hole density typically above 5x1013/cm2. The possibility to induce a hole-doped stable ferromagnetic order in this two-dimensional material, either by intrinsic or extrinsic defects, is theoretically studied, using first-principles simulations. Sn vacancies and Sn vacancy-hydrogen complexes are predicted to be shallow acceptors, with relatively low formation energies in SnO monolayers grown under O-rich conditions. These defects produce spin-polarized gap states near the valence band-edge, potentially stabilizing the ferromagnetic order in 2D SnO. Hole-doping resulting from substitutional doping is also investigated. Among the considered possible dopants, As, substituting O, is predicted to produce shallow spin-polarized gap states near the valence band edge, also potentially resulting in a stable ferromagnetic order in SnO monolayers. |
url |
http://dx.doi.org/10.1063/1.5025272 |
work_keys_str_mv |
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