Distortion of frustrated spin cluster caused by quantum fluctuation due to magneto-elastic coupling

Distortion of frustrated spin cluster caused by quantum fluctuation due to magneto-elastic coupling

We study the effects of magneto-elastic coupling on frustrated spin states of the antiferromagnetic Heisenberg model on a regular triangle and tetrahedron made of spin 1/2 or 1. Displacement of spin is considered as a quantum-mechanical variable. Distortion of clusters occurs through quantum fluctua...

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Veröffentlicht in:Journal of physics. Condensed matter 2007-04, Vol.19 (14), p.145261-145261 (6)
Hauptverfasser: Terao, Kiyosi, Honda, Ikumi
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Sprache:eng
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Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
General theory and models of magnetic ordering
Magnetic properties and materials
Physics
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container_title Journal of physics. Condensed matter
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creator Terao, Kiyosi
Honda, Ikumi
description We study the effects of magneto-elastic coupling on frustrated spin states of the antiferromagnetic Heisenberg model on a regular triangle and tetrahedron made of spin 1/2 or 1. Displacement of spin is considered as a quantum-mechanical variable. Distortion of clusters occurs through quantum fluctuation of normal modes caused by magneto-elastic coupling. The nonmagnetic phase transitions of vanadium and chromium spinels are discussed.
doi_str_mv 10.1088/0953-8984/19/14/145261
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
General theory and models of magnetic ordering
Magnetic properties and materials
Physics
title Distortion of frustrated spin cluster caused by quantum fluctuation due to magneto-elastic coupling
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