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

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UNSPECIFIED (1999) Characterisation of spin-waves in copper(II) deuteroformate tetradeuterate: a square S=1/2 Heisenberg antiferromagnet. SOLID STATE COMMUNICATIONS, 112 (10). pp. 561-564. ISSN 0038-1098.

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Abstract

Copper(II) formate tetrahydrate (CFTH) is a model square S = 1/2 Heisenberg antiferromagnet with T-N = 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, (C) 1999 Elsevier Science Ltd, All rights reserved.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Journal or Publication Title: SOLID STATE COMMUNICATIONS
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
ISSN: 0038-1098
Official Date: 1999
Dates:
DateEvent
1999UNSPECIFIED
Volume: 112
Number: 10
Number of Pages: 4
Page Range: pp. 561-564
Publication Status: Published

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