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Magnetic order in the S=1/2 two-dimensional molecular antiferromagnet copper pyrazine perchlorate Cu(Pz)(2)(ClO4)(2)

Abstract:

We present an investigation of magnetic ordering in the two-dimensional S= 2 quantum magnet Cu (Pz)2 (Cl O4) 2 using specific heat and zero-field muon-spin relaxation (μ+ SR). The magnetic contribution to the specific heat is consistent with an exchange strength of 17.7 (3) K. We find unambiguous evidence for a transition to a state of three-dimensional long-range order below a critical temperature TN =4.21 (1) K using μ+ SR even though there is no feature in the specific heat at that tempera...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.75.094421

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
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Journal:
Physical Review B
Volume:
75
Issue:
9
Publication date:
2007-03-01
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Source identifiers:
5763
Language:
English
Pubs id:
pubs:5763
UUID:
uuid:7e392cbb-d6ad-4734-ad7d-383afb838f33
Local pid:
pubs:5763
Deposit date:
2012-12-19

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