Approximate eigenvalue determination of geometrically frustrated magnetic molecules

Geometrically frustrated magnetic molecules have attracted a lot of interest in the field of molecular magnetism as well as frustrated Heisenberg antiferromagnets. In this article we demonstrate how an approximate diagonalization scheme can be used in order to obtain thermodynamic and spectroscopi...

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Published in:Condensed Matter Physics
Date:2009
Main Authors: Schnalle, R., Läuchli, A.M., Schnack, J.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2009
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/119999
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Approximate eigenvalue determination of geometrically frustrated magnetic molecules / R. Schnalle, A.M. Läuchli, J. Schnack // Condensed Matter Physics. — 2009. — Т. 12, № 3. — С. 331-342. — Бібліогр.: 35 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:Geometrically frustrated magnetic molecules have attracted a lot of interest in the field of molecular magnetism as well as frustrated Heisenberg antiferromagnets. In this article we demonstrate how an approximate diagonalization scheme can be used in order to obtain thermodynamic and spectroscopic information about frustrated magnetic molecules. To this end we theoretically investigate an antiferromagnetically coupled spin system with cuboctahedral structure modeled by an isotropic Heisenberg Hamiltonian. Геометрично фрустрованi магнiтнi молекули привертають багато уваги як у дiлянцi молекулярного магнетизму, так i в дiлянцi фрустрованих антиферомагнетикiв Гайзенберга. У цiй статтi ми демонструємо, як наближена дiагоналiзацiйна схема може бути використана для отримання термодинамiчної i спектроскопiчної iнформацiї про фрустрованi магнiтнi молекули. М и теоретично дослiджуємо антиферомагнiтно взаємодiючу спiнову систему з кубоктаедричною структурою, модельовану iзотропним гамiльтонiаном Гайзенберга.
ISSN:1607-324X