Complex Faraday Effect in Cubic Magnets with Jahn-Teller Clusters

L. D. Falkovskaya; A. Ya Fishman; V. Ya Mitrofanov; M. A. Ivanov; B. S. Tsukerblat

doi:10.1524/zpch.1996.1.1.505

Complex Faraday Effect in Cubic Magnets with Jahn-Teller Clusters

L. D. Falkovskaya
, A. Ya Fishman
, V. Ya Mitrofanov
, M. A. Ivanov
, B. S. Tsukerblat

Research output: Contribution to journal › Article › peer-review

Abstract

A theoretical investigation is made of the dynamic tensor of the dielectric permittivity [formula ommitted] in magnetic crystals with Jahn-Teller (JT) clusters of 3d-mixed valence ions. It is shown that coexistence in such clusters of an appreciable dipole and unquenched orbital momenta leads to an anomalous growth of antisymmetric tensor components and Faraday rotation (FR) and magnetic circular dichroism (MCD). These effects take place in the infrared and far-infrared regions of the spectrum. FR and MCD are characterized by anisotropy and strong dependence upon the distribution and strength of random crystal fields on JT clusters. It is shown also that significant magneto-electric effects can take place in these mixed-valence systems.

Original language	English
Pages (from-to)	505-516
Number of pages	12
Journal	Zeitschrift fur Physikalische Chemie
Volume	1
Issue number	1
DOIs	https://doi.org/10.1524/zpch.1996.1.1.505
State	Published - 1 Jan 1996
Externally published	Yes

Keywords

3d-mixed valence ions
Faraday rotation
Impurity cluster
Jahn-Teller effect
Magnetic circular dichroism
Magneto-electric effect

ASJC Scopus subject areas

Physical and Theoretical Chemistry

Access to Document

10.1524/zpch.1996.1.1.505

Cite this

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title = "Complex Faraday Effect in Cubic Magnets with Jahn-Teller Clusters",

abstract = "A theoretical investigation is made of the dynamic tensor of the dielectric permittivity [formula ommitted] in magnetic crystals with Jahn-Teller (JT) clusters of 3d-mixed valence ions. It is shown that coexistence in such clusters of an appreciable dipole and unquenched orbital momenta leads to an anomalous growth of antisymmetric tensor components and Faraday rotation (FR) and magnetic circular dichroism (MCD). These effects take place in the infrared and far-infrared regions of the spectrum. FR and MCD are characterized by anisotropy and strong dependence upon the distribution and strength of random crystal fields on JT clusters. It is shown also that significant magneto-electric effects can take place in these mixed-valence systems.",

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doi = "10.1524/zpch.1996.1.1.505",

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AU - Falkovskaya, L. D.

AU - Fishman, A. Ya

AU - Mitrofanov, V. Ya

AU - Ivanov, M. A.

AU - Tsukerblat, B. S.

PY - 1996/1/1

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N2 - A theoretical investigation is made of the dynamic tensor of the dielectric permittivity [formula ommitted] in magnetic crystals with Jahn-Teller (JT) clusters of 3d-mixed valence ions. It is shown that coexistence in such clusters of an appreciable dipole and unquenched orbital momenta leads to an anomalous growth of antisymmetric tensor components and Faraday rotation (FR) and magnetic circular dichroism (MCD). These effects take place in the infrared and far-infrared regions of the spectrum. FR and MCD are characterized by anisotropy and strong dependence upon the distribution and strength of random crystal fields on JT clusters. It is shown also that significant magneto-electric effects can take place in these mixed-valence systems.

AB - A theoretical investigation is made of the dynamic tensor of the dielectric permittivity [formula ommitted] in magnetic crystals with Jahn-Teller (JT) clusters of 3d-mixed valence ions. It is shown that coexistence in such clusters of an appreciable dipole and unquenched orbital momenta leads to an anomalous growth of antisymmetric tensor components and Faraday rotation (FR) and magnetic circular dichroism (MCD). These effects take place in the infrared and far-infrared regions of the spectrum. FR and MCD are characterized by anisotropy and strong dependence upon the distribution and strength of random crystal fields on JT clusters. It is shown also that significant magneto-electric effects can take place in these mixed-valence systems.

KW - 3d-mixed valence ions

KW - Faraday rotation

KW - Impurity cluster

KW - Jahn-Teller effect

KW - Magnetic circular dichroism

KW - Magneto-electric effect

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U2 - 10.1524/zpch.1996.1.1.505

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JF - Zeitschrift fur Physikalische Chemie

IS - 1

ER -

Complex Faraday Effect in Cubic Magnets with Jahn-Teller Clusters

Abstract

Keywords

ASJC Scopus subject areas

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