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Magnetic ordering in Ho-doped Bi2Te3 topological insulator thin films

Abstract:

We investigate the magnetic properties of Ho-doped Bi2Te3 thin films grown by molecular beam epitaxy. Analysis of the polarized x-ray absorption spectra at the Ho M5 absorption edge gives an effective 4f magnetic moment which is ~45% of the Hund's rule ground state value. X-ray magnetic circular dichroism (XMCD) shows no significant anisotropy, which suggests that the reduced spin moment is not due to the crystal field effects, but rather the presence of non-magnetic or antiferromagnetic Ho s...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/pssr.201600061

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More from this funder
Name:
Engineering and Physical Sciences Research Council
Funding agency for:
Collins-McIntyre, L
Grant:
Doctoral Training Award
More from this funder
Name:
University of Stanford
Funding agency for:
Harrison, S
Grant:
Office of the Vice Provost for Graduate Education
More from this funder
Name:
Defense Advanced Research Projects Agency
Funding agency for:
Harrison, S
Grant:
Office of the Vice Provost for Graduate Education
Publisher:
Wiley
Journal:
Physica Status Solidi: Rapid Research Letters More from this journal
Volume:
10
Issue:
6
Pages:
467–470
Publication date:
2016-01-01
Acceptance date:
2016-04-07
DOI:
ISSN:
1862-6270
Keywords:
Pubs id:
pubs:614265
UUID:
uuid:fd07d152-b02d-48e4-9dc9-be8fb067701e
Local pid:
pubs:614265
Source identifiers:
614265
Deposit date:
2016-04-07

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