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Characterisation of spin-waves in copper(II) deuteroformate tetradeuterate: a square S=1/2 Heisenberg antiferromagnet

Abstract:
Copper(II) formate tetrahydrate (CFTH) is a model square S = 1/2 Heisenberg antiferromagnet with TN = 16.54±0.05 K. The dispersion of spin-waves in the magnetic layers of a fully deuterated sample of this material has been mapped at 4.3 K by inelastic neutron scattering from the zone centre at 0.38 meV to the zone boundary at 14.8 meV. The data are described well by spin-wave theory with a small correction for quantum fluctuations, yielding a nearest-neighbour in-plane exchange constant of 6.3±0.2 meV.
Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
Publisher:
Elsevier
Journal:
SOLID STATE COMMUNICATIONS More from this journal
Volume:
112
Issue:
10
Pages:
561-564
Publication date:
1999-01-01
DOI:
ISSN:
0038-1098
Language:
English
Keywords:
Pubs id:
pubs:46287
UUID:
uuid:1b770268-6974-493f-ae8c-bde1b2b65be6
Local pid:
pubs:46287
Source identifiers:
46287
Deposit date:
2012-12-19

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