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Title
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Internal energy and magnetic moment of three-dimensional ferromagnets
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Author
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Abstract
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| The unique relationship between the reduced internal energy and magnetic moment is investigated for a three-dimensional ferromagnet on the basis of a many-body k-space spin-wave solution of an anisotropic Heisenberg Hamiltonian of general site spin S. Spin-wave interactions up through terms quartic in Boson creation and annihilation operators are considered. The three-dimensional lattice on which the Hamiltonian is developed is in terms of the so-called "bundle representation" for three independent axes as applicable to systems of orthorhombic and higher symmetry. The Hamiltonians considered are general enough to encompass models ranging from the ordinary (isotropic) Heisenberg Hamiltonian to the anisotropic Ising Hamiltonian, all for general values of S. (C) 2003 Wiley Periodicals, Inc. |
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Language
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English
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Source (journal)
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International journal of quantum chemistry. - New York, N.Y., 1967, currens
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Source (book)
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43rd International Symposium on Theory and Computations in Molecular and, Materials Sciences, Biology, and Pharmacology, FEB 22-MAR 01, 2003, ST AUGUSTINE, FLORIDA
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Publication
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New York, N.Y.
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Wiley
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2003
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ISSN
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0020-7608
[print]
1097-461X
[online]
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DOI
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10.1002/QUA.10594
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Volume/pages
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95
:4-5
(2003)
, p. 451-454
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ISI
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000186143200010
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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