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Spin Jahn-Teller antiferromagnetism in CoTi$_2$O$_5$

Abstract:

We have used neutron powder diffraction to solve the magnetic structure of orthorhombic CoTi$_2$O$_5$, showing that the long-range ordered state below 26 K identified in our muon-spin rotation experiments is antiferromagnetic with propagation vector ${\bf k}=(\pm \frac{1}{2}, \frac{1}{2}, 0)$ and moment of 2.72(1)$\mu_{\rm B}$ per Co$^{2+}$ ion. This long range magnetic order is incompatible with the experimentally determined crystal structure because the imposed symmetry completely frustrate...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1103/PhysRevB.99.064403

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
Oxford college:
Lincoln College
ORCID:
0000-0002-4405-1075
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
Oxford college:
University College
Khalyavin, DD More by this author
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
99
Pages:
064403
Publication date:
2019-02-04
Acceptance date:
2019-01-23
DOI:
EISSN:
2469-9969
ISSN:
2469-9950
Pubs id:
pubs:896599
URN:
uri:f1cc8d19-645a-4a17-92ec-cf332cd2e0e2
UUID:
uuid:f1cc8d19-645a-4a17-92ec-cf332cd2e0e2
Local pid:
pubs:896599

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