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Muon-spin relaxation study of the spin-1/2 molecular chain compound Cu(HCO2)2(C4H4N2)

Abstract:
We present the results of a muon-spin relaxation (μ+SR) study of magnetic order in the quasi-one-dimensional spin-1/2 molecular chain compound CU(HCO2)2(C4h4N2). Zero-field μ+SR measurements at low temperatures show oscillations in the measured asymmetry, characteristic of a quasistatic magnetic field at the muon sites. Our measurements provide convincing evidence for long-range magnetic order below a temperature TN=1.97(8) K. This leads to an estimate of the interchain coupling constant of |J'| lkB=1.27 K and to a ratio |J'lJ|=1.6x10-1.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.73.172403

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
More by this author
Institution:
ISIS Facility, Rutherford Appleton Laboratory, Chilton, Oxfordshire, UK
Role:
Author
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Funding agency for:
Lancaster, T
Grant:
RII3-CT-2003-505925
Engineering and Physical Sciences Research Council More from this funder
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
73
Issue:
17
Pages:
172403
Publication date:
2006-05-01
DOI:
EISSN:
1550-235x
ISSN:
1098-0211
Language:
English
Keywords:
Subjects:
UUID:
uuid:5bf18f5a-9abd-44ea-bdc9-2bab9830d3ec
Local pid:
ora:1013
Deposit date:
2008-03-14

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