Wave-vector-dependent magnetic susceptibility of classical Heisenberg rings

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Authors
Luscombe, James H.
Luban, Marshall
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1997
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Abstract
We first extend previous results of G S Joyce so as to derive the exact wave-vector-dependent susceptibility N.q; T / for a ring of N classical Heisenberg spins with isotropic nearest-neighbour interactions. Our major result however is a simple, highly accurate, analytic approximation for N.q; T / which nevertheless preserves an associated sum rule over the Brillouin zone.
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Article
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Physics
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J. Phys.: Condens. Matter, Volume 9, (1997), pp. 6913–6920. Printed in the UK
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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