Wave-Vector Dependence of the Jahn-Teller Interactions in TmVO4

Jørgen Kjems; W. Hayes; S. H. Smith

doi:10.1103/PhysRevLett.35.1089

Wave-Vector Dependence of the Jahn-Teller Interactions in TmVO4

Jørgen Kjems, W. Hayes, S. H. Smith

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

Abstract

The resonant Jahn-Teller coupling of the B2g acoustic phonon and the Zeeman-split ground doublet in TmVO4 has been studied by inelastic neutron scattering. Tuning of the magnetic field provides a means for investigating the wave-vector dependence of the interactions. We find that the coupling is constant in the region where the phonon dispersion is linear, up to 0.4 of the distance to the zone boundary. This agrees with the predictions of a Debye model.

Original language	English
Journal	Physical Review Letters
Volume	35
Issue number	16
Pages (from-to)	1089-1092
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.35.1089
Publication status	Published - 1975

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title = "Wave-Vector Dependence of the Jahn-Teller Interactions in TmVO4",

abstract = "The resonant Jahn-Teller coupling of the B2g acoustic phonon and the Zeeman-split ground doublet in TmVO4 has been studied by inelastic neutron scattering. Tuning of the magnetic field provides a means for investigating the wave-vector dependence of the interactions. We find that the coupling is constant in the region where the phonon dispersion is linear, up to 0.4 of the distance to the zone boundary. This agrees with the predictions of a Debye model.",

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AU - Hayes, W.

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N2 - The resonant Jahn-Teller coupling of the B2g acoustic phonon and the Zeeman-split ground doublet in TmVO4 has been studied by inelastic neutron scattering. Tuning of the magnetic field provides a means for investigating the wave-vector dependence of the interactions. We find that the coupling is constant in the region where the phonon dispersion is linear, up to 0.4 of the distance to the zone boundary. This agrees with the predictions of a Debye model.

AB - The resonant Jahn-Teller coupling of the B2g acoustic phonon and the Zeeman-split ground doublet in TmVO4 has been studied by inelastic neutron scattering. Tuning of the magnetic field provides a means for investigating the wave-vector dependence of the interactions. We find that the coupling is constant in the region where the phonon dispersion is linear, up to 0.4 of the distance to the zone boundary. This agrees with the predictions of a Debye model.

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DO - 10.1103/PhysRevLett.35.1089

M3 - Journal article

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SP - 1089

EP - 1092

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

ER -

Wave-Vector Dependence of the Jahn-Teller Interactions in TmVO4

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