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Intrinsic magnetic order in Cs2AgF4 detected by muon-spin relaxation

Abstract:

We present the results of a muon-spin relaxation study of the high- Tc analog material Cs2 AgF4. We find unambiguous evidence for magnetic order, intrinsic to the material, below TC =13.95(3) K. The ratio of interplane to intraplane coupling is estimated to be J′ J =1.9× 10-2, while fits of the temperature dependence of the order parameter reveal a critical exponent β=0.292(3), implying an intermediate character between pure two- and three-dimensional magnetism in the critical regime. Above T...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.75.220408

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics, REF-Physics
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Giblin, SR More by this author
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Journal:
PHYSICAL REVIEW B
Volume:
75
Issue:
22
Publication date:
2007-06-05
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
URN:
uuid:3fc63c6a-7c72-4989-9b00-25a9a22013e0
Source identifiers:
20044
Local pid:
pubs:20044
Language:
English

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