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Magnetic proximity-coupling to Cr-doped Sb₂Te₃ thin films

Abstract:

Using soft x-ray absorption spectroscopy we determined the chemical and magnetic properties of the magnetic topological insulator (MTI) Cr:Sb2Te3. X-ray magnetic circular dichroism (XMCD) at the Cr L2,3, Te M4,5, and Sb M4,5 edges shows that the Te 5p moment is aligned antiparallel to both the Cr 3d and Sb 5p moments, which is characteristic for carrier-mediated ferromagnetic coupling. Comparison of the Cr L2,3 spectra with multiplet calculations indicates a hybridized Cr state, consistent wi...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1103/PhysRevB.95.224422

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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Figueroa, AI More by this author
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Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Steinke, N-J More by this author
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John Fell Fund More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B: Condensed Matter and Materials Physics Journal website
Volume:
95
Pages:
224422
Publication date:
2017-05-05
Acceptance date:
2017-05-24
DOI:
EISSN:
2469-9969
ISSN:
2469-9950
Pubs id:
pubs:697047
URN:
uri:1d10cc5c-a060-4b4a-bbfd-caa05306b449
UUID:
uuid:1d10cc5c-a060-4b4a-bbfd-caa05306b449
Local pid:
pubs:697047
Keywords:

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