Dynamical characteristics of a Heisenberg spin cluster

T. H. Kwon; J. Daboul; H. A. Gersch

doi:10.1088/0022-3719/4/5/012

Dynamical characteristics of a Heisenberg spin cluster

T. H. Kwon, J. Daboul, H. A. Gersch

Department of Physics

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4 Scopus citations

Abstract

The dynamic properties of a Heisenberg spin cluster are examined in terms of time and temperature dependent spin-spin correlation functions and their wavevector dependent frequency transforms evaluated exactly in the cluster models. In particular, the Wigner-Eckart theorem is invoked to obtain these spin correlations in closed algebraic form for all spin values and for all temperatures above the transition temperature. The results are compared with the theories of Windsor (1967) and of Blume and Hubbard (1970) and with the experimental data on RbMnF₃.

Original language	English
Article number	012
Pages (from-to)	621-624
Number of pages	4
Journal	Journal of Physics C: Solid State Physics
Volume	4
Issue number	5
DOIs	https://doi.org/10.1088/0022-3719/4/5/012
State	Published - 1 Dec 1971

ASJC Scopus subject areas

Condensed Matter Physics
General Engineering
General Physics and Astronomy

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10.1088/0022-3719/4/5/012

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title = "Dynamical characteristics of a Heisenberg spin cluster",

abstract = "The dynamic properties of a Heisenberg spin cluster are examined in terms of time and temperature dependent spin-spin correlation functions and their wavevector dependent frequency transforms evaluated exactly in the cluster models. In particular, the Wigner-Eckart theorem is invoked to obtain these spin correlations in closed algebraic form for all spin values and for all temperatures above the transition temperature. The results are compared with the theories of Windsor (1967) and of Blume and Hubbard (1970) and with the experimental data on RbMnF3.",

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N2 - The dynamic properties of a Heisenberg spin cluster are examined in terms of time and temperature dependent spin-spin correlation functions and their wavevector dependent frequency transforms evaluated exactly in the cluster models. In particular, the Wigner-Eckart theorem is invoked to obtain these spin correlations in closed algebraic form for all spin values and for all temperatures above the transition temperature. The results are compared with the theories of Windsor (1967) and of Blume and Hubbard (1970) and with the experimental data on RbMnF3.

AB - The dynamic properties of a Heisenberg spin cluster are examined in terms of time and temperature dependent spin-spin correlation functions and their wavevector dependent frequency transforms evaluated exactly in the cluster models. In particular, the Wigner-Eckart theorem is invoked to obtain these spin correlations in closed algebraic form for all spin values and for all temperatures above the transition temperature. The results are compared with the theories of Windsor (1967) and of Blume and Hubbard (1970) and with the experimental data on RbMnF3.

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M3 - Article

AN - SCOPUS:5544293661

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JO - Journal of Physics C: Solid State Physics

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ER -

Dynamical characteristics of a Heisenberg spin cluster

Abstract

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