The magnetic correlation between organic radicals in a quasi-one-dimensional organic ferromagnet

The direct and indirect correlation between organic radicals in a quasi-one-dimensional organic ferromagnet model is investigated. By introducing random-phase-approximation (RPA), the typical spin-wave excitation modes of the model are obtained. The stiffness of acoustic spin-wave mode is found to r...

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Bibliographic Details
Published inSolid state communications Vol. 101; no. 4; pp. 289 - 293
Main Authors Wang, Y.Q., Xiong, Y.S., Yi, L., Yao, K.L.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1997
Elsevier
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Exchange and superexchange interactions
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
Spin waves
Spin waves
Hamiltonians
One dimensional model
Theoretical study
Ferromagnetic materials
Hartree-Fock method
Random phase approximation
Exchange interactions
Organic compounds
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Summary:The direct and indirect correlation between organic radicals in a quasi-one-dimensional organic ferromagnet model is investigated. By introducing random-phase-approximation (RPA), the typical spin-wave excitation modes of the model are obtained. The stiffness of acoustic spin-wave mode is found to represent the correlation between radicals. The variation of the stiffness according to the parameters of the system is discussed and indicates the unique features of the organic ferromagnet.
ISSN:0038-1098
1879-2766
DOI:10.1016/S0038-1098(96)00556-X