Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2 O7 from neutron spectroscopy

A. J. Princep; H. C. Walker; D. T. Adroja; D. Prabhakaran; A. T. Boothroyd

doi:10.1103/PhysRevB.91.224430

Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2 O7 from neutron spectroscopy

A. J. Princep, H. C. Walker, D. T. Adroja, D. Prabhakaran, A. T. Boothroyd

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

43 Citations (Scopus)

Abstract

We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb3+ in Tb2Ti2O7. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb2Ti2O7 without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly |±4) components. We compare the model critically with earlier models.

Original language	English
Article number	224430
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.91.224430
Publication status	Published - 29 Jun 2015
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.91.224430

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title = "Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2 O7 from neutron spectroscopy",

abstract = "We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb3+ in Tb2Ti2O7. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb2Ti2O7 without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly |±4) components. We compare the model critically with earlier models.",

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AU - Princep, A. J.

AU - Walker, H. C.

AU - Adroja, D. T.

AU - Prabhakaran, D.

AU - Boothroyd, A. T.

PY - 2015/6/29

Y1 - 2015/6/29

N2 - We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb3+ in Tb2Ti2O7. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb2Ti2O7 without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly |±4) components. We compare the model critically with earlier models.

AB - We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb3+ in Tb2Ti2O7. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb2Ti2O7 without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly |±4) components. We compare the model critically with earlier models.

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Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2 O7 from neutron spectroscopy

Abstract

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