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Spin dynamics of coupled spin ladders near quantum criticality in Ba2CuTeO6

Abstract:

We report inelastic neutron scattering measurements of the magnetic excitations in Ba2CuTeO6, proposed by ab initio calculations to magnetically realize weakly coupled antiferromagnetic two-leg spin-1/2 ladders. Isolated ladders are expected to have a singlet ground state protected by a spin gap. Ba2CuTeO6 orders magnetically, but with a small Neel temperature relative to the exchange strength, suggesting that the interladder couplings are relatively small and only just able to stabilize magn...

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

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Publisher copy:
10.1103/PhysRevB.98.174410

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Condensed Matter Physics
Oxford college:
Mansfield College
Role:
Author
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Publisher:
American Physical Society Publisher's website
Journal:
Physical review B: Condensed matter and materials physics Journal website
Volume:
98
Pages:
174410
Publication date:
2018-11-07
Acceptance date:
2018-10-03
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Pubs id:
pubs:858738
URN:
uri:c2e8821f-0f69-40f5-8e29-86c81367d8c3
UUID:
uuid:c2e8821f-0f69-40f5-8e29-86c81367d8c3
Local pid:
pubs:858738

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