The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

The ferromagnetism in the vicinity of Lifshitz topological transitions

The ferromagnetism in the vicinity of Lifshitz topological transitions
The ferromagnetism in the vicinity of Lifshitz topological transitions
We show that the critical temperature of the ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. Significant variations of the Curie temperature occur close to the Lifshitz topological transition points, where the hole Fermi surface acquires additional components of topological connectivity due to the filling of excited size-quantization subbands. The model calculations demonstrate that the Curie temperature can be doubled by a weak variation of the gate voltage for a CdMnTe/CdMgTe quantum-well-based device.
1550-235X
Grigoryev, P.S.
cab9f507-dec3-45ac-8370-04b19e003c6c
Glazov, M.M.
a014ed49-8ae2-4d25-91f4-94b79265a8ab
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Varlamov, A.A.
45a0f163-f9c9-425b-af0b-50be123c8564
Grigoryev, P.S.
cab9f507-dec3-45ac-8370-04b19e003c6c
Glazov, M.M.
a014ed49-8ae2-4d25-91f4-94b79265a8ab
Kavokin, A.V.
70ffda66-cfab-4365-b2db-c15e4fa1116b
Varlamov, A.A.
45a0f163-f9c9-425b-af0b-50be123c8564

Grigoryev, P.S., Glazov, M.M., Kavokin, A.V. and Varlamov, A.A. (2017) The ferromagnetism in the vicinity of Lifshitz topological transitions. Physical Review B, 96 (20), [205415]. (doi:10.1103/PhysRevB.96.205415).

Record type: Article

Abstract

We show that the critical temperature of the ferromagnetic phase transition in a quasi-two-dimensional hole gas confined in a diluted magnetic semiconductor quantum well strongly depends on the hole chemical potential and hole density. Significant variations of the Curie temperature occur close to the Lifshitz topological transition points, where the hole Fermi surface acquires additional components of topological connectivity due to the filling of excited size-quantization subbands. The model calculations demonstrate that the Curie temperature can be doubled by a weak variation of the gate voltage for a CdMnTe/CdMgTe quantum-well-based device.

Text
The Ferromagnetism in the Vicinity of Lifshitz Topological Transitions - Accepted Manuscript
Download (528kB)

More information

Accepted/In Press date: 25 October 2017
e-pub ahead of print date: 9 November 2017
Published date: 15 November 2017

Identifiers

Local EPrints ID: 416329
URI: http://eprints.soton.ac.uk/id/eprint/416329
ISSN: 1550-235X
PURE UUID: 61e98492-1a0a-4201-af0b-ce65f93d8567

Catalogue record

Date deposited: 13 Dec 2017 17:30
Last modified: 21 Nov 2021 09:47

Export record

Altmetrics

Contributors

Author: P.S. Grigoryev
Author: M.M. Glazov
Author: A.V. Kavokin
Author: A.A. Varlamov

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×