Crystal field excitations across the isostructural transition in TbNiAl and TbPdAl

Pavel Javorský; Jiří Prchal; Devashibhai Adroja

doi:10.1016/j.ssc.2008.01.034

Crystal field excitations across the isostructural transition in TbNiAl and TbPdAl

Pavel Javorský, Jiří Prchal, Devashibhai Adroja

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

8 Citations (Scopus)

Abstract

We report on the inelastic neutron scattering study performed on TbNiAl and TbPdAl with special focus on the isostructural transition that occurs for both compounds around 110 K. The measured inelastic neutron spectra revealed crystal-field excitations below 15 meV. The corresponding scattering intensity shifts gradually to lower energies when increasing temperature from 4 to 140 K that corresponds to gradual population of the excited crystal-field states. We did not observe any significant deviation from this tendency around the temperature of the structural transition, which may indicate that the crystal field potential seen by the Tb ion has a very similar strength as well as local point symmetry above and below the structural phase transition.

Original language	English
Pages (from-to)	21-24
Number of pages	4
Journal	Solid State Communications
Volume	146
Issue number	1-2
DOIs	https://doi.org/10.1016/j.ssc.2008.01.034
Publication status	Published - Apr 2008
Externally published	Yes

Keywords

A. Rare-earth compounds
D. Crystal fields
E. Neutron scattering

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/j.ssc.2008.01.034

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title = "Crystal field excitations across the isostructural transition in TbNiAl and TbPdAl",

abstract = "We report on the inelastic neutron scattering study performed on TbNiAl and TbPdAl with special focus on the isostructural transition that occurs for both compounds around 110 K. The measured inelastic neutron spectra revealed crystal-field excitations below 15 meV. The corresponding scattering intensity shifts gradually to lower energies when increasing temperature from 4 to 140 K that corresponds to gradual population of the excited crystal-field states. We did not observe any significant deviation from this tendency around the temperature of the structural transition, which may indicate that the crystal field potential seen by the Tb ion has a very similar strength as well as local point symmetry above and below the structural phase transition.",

keywords = "A. Rare-earth compounds, D. Crystal fields, E. Neutron scattering",

author = "Pavel Javorsk{\'y} and Ji{\v r}{\'i} Prchal and Devashibhai Adroja",

year = "2008",

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doi = "10.1016/j.ssc.2008.01.034",

language = "English",

volume = "146",

pages = "21--24",

journal = "Solid State Communications",

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T1 - Crystal field excitations across the isostructural transition in TbNiAl and TbPdAl

AU - Javorský, Pavel

AU - Prchal, Jiří

AU - Adroja, Devashibhai

PY - 2008/4

Y1 - 2008/4

N2 - We report on the inelastic neutron scattering study performed on TbNiAl and TbPdAl with special focus on the isostructural transition that occurs for both compounds around 110 K. The measured inelastic neutron spectra revealed crystal-field excitations below 15 meV. The corresponding scattering intensity shifts gradually to lower energies when increasing temperature from 4 to 140 K that corresponds to gradual population of the excited crystal-field states. We did not observe any significant deviation from this tendency around the temperature of the structural transition, which may indicate that the crystal field potential seen by the Tb ion has a very similar strength as well as local point symmetry above and below the structural phase transition.

AB - We report on the inelastic neutron scattering study performed on TbNiAl and TbPdAl with special focus on the isostructural transition that occurs for both compounds around 110 K. The measured inelastic neutron spectra revealed crystal-field excitations below 15 meV. The corresponding scattering intensity shifts gradually to lower energies when increasing temperature from 4 to 140 K that corresponds to gradual population of the excited crystal-field states. We did not observe any significant deviation from this tendency around the temperature of the structural transition, which may indicate that the crystal field potential seen by the Tb ion has a very similar strength as well as local point symmetry above and below the structural phase transition.

KW - A. Rare-earth compounds

KW - D. Crystal fields

KW - E. Neutron scattering

UR - http://www.scopus.com/inward/record.url?scp=40249097405&partnerID=8YFLogxK

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DO - 10.1016/j.ssc.2008.01.034

M3 - Article

AN - SCOPUS:40249097405

SN - 0038-1098

VL - 146

SP - 21

EP - 24

JO - Solid State Communications

JF - Solid State Communications

IS - 1-2

ER -

Crystal field excitations across the isostructural transition in TbNiAl and TbPdAl

Abstract

Keywords

ASJC Scopus subject areas

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