Biquadratic Exchange in CsMnxMg1-xBr3

U. Falk; A. Furrer; Jørgen Kjems; H. U. Güdel

doi:10.1103/PhysRevLett.52.1336

Biquadratic Exchange in CsMnxMg1-xBr3

U. Falk, A. Furrer, Jørgen Kjems, H. U. Güdel

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The importance of higher-order exchange interaction in localized S-state systems is discussed. The equation of motion is solved for a one-dimensional antiferromagnet with bilinear and biquadratic exchange coupling. It is shown that the biquadratic exchange interaction usually cannot be derived from the observed spin-wave dispersion, but is susceptible to experimental determination from the excitation spectra of small clusters of magnetic ions as exemplified for CsMnxMg1-xBr3 by inelastic neutron scattering.

Original language	English
Journal	Physical Review Letters
Volume	52
Issue number	15
Pages (from-to)	1336-1339
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.52.1336
Publication status	Published - 1984

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title = "Biquadratic Exchange in CsMnxMg1-xBr3",

abstract = "The importance of higher-order exchange interaction in localized S-state systems is discussed. The equation of motion is solved for a one-dimensional antiferromagnet with bilinear and biquadratic exchange coupling. It is shown that the biquadratic exchange interaction usually cannot be derived from the observed spin-wave dispersion, but is susceptible to experimental determination from the excitation spectra of small clusters of magnetic ions as exemplified for CsMnxMg1-xBr3 by inelastic neutron scattering.",

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year = "1984",

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T1 - Biquadratic Exchange in CsMnxMg1-xBr3

AU - Falk, U.

AU - Furrer, A.

AU - Kjems, Jørgen

AU - Güdel, H. U.

PY - 1984

Y1 - 1984

N2 - The importance of higher-order exchange interaction in localized S-state systems is discussed. The equation of motion is solved for a one-dimensional antiferromagnet with bilinear and biquadratic exchange coupling. It is shown that the biquadratic exchange interaction usually cannot be derived from the observed spin-wave dispersion, but is susceptible to experimental determination from the excitation spectra of small clusters of magnetic ions as exemplified for CsMnxMg1-xBr3 by inelastic neutron scattering.

AB - The importance of higher-order exchange interaction in localized S-state systems is discussed. The equation of motion is solved for a one-dimensional antiferromagnet with bilinear and biquadratic exchange coupling. It is shown that the biquadratic exchange interaction usually cannot be derived from the observed spin-wave dispersion, but is susceptible to experimental determination from the excitation spectra of small clusters of magnetic ions as exemplified for CsMnxMg1-xBr3 by inelastic neutron scattering.

U2 - 10.1103/PhysRevLett.52.1336

DO - 10.1103/PhysRevLett.52.1336

M3 - Journal article

SN - 0031-9007

VL - 52

SP - 1336

EP - 1339

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

ER -

Biquadratic Exchange in CsMnxMg1-xBr3

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