Crystal field excitations in the low-dimensional quasi-triangular lattice compound Ce2Ge2In

D. T. Adroja; E. Matsuoka; A. D. Hillier; W. Kockelmann; T. Takabatake; M. H. Jung; J. W. Taylor

doi:10.1016/j.physb.2005.01.118

Crystal field excitations in the low-dimensional quasi-triangular lattice compound Ce₂Ge₂In

D. T. Adroja, E. Matsuoka, A. D. Hillier, W. Kockelmann, T. Takabatake, M. H. Jung, J. W. Taylor

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

4 Citations (Scopus)

Abstract

The structural, magnetic and thermal properties of Ce₂Ge ₂In have been investigated between 0.36 and 300 K. The specific heat exhibits a peak and the AC susceptibility exhibits a weak anomaly at 2 K, whereas neutron diffraction does not show any signs of long-range magnetic ordering down to 0.36 K. Inelastic neutron scattering at 17 K shows two well-defined crystal field (CF) excitations at 11.6 and 20.1 meV, indicating a doublet CF ground state of the Ce³⁺ ion in agreement with the entropy ∼R ln 2 at 10 K derived from the heat capacity data.

Original language	English
Pages (from-to)	314-316
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	359-361
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physb.2005.01.118
Publication status	Published - 30 Apr 2005
Externally published	Yes

Keywords

CeGeIn
Crystal field excitations
Heat capacity
Kondo system
Neutron diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2005.01.118

Cite this

@article{99eecd5572844e698616329522c7d327,

title = "Crystal field excitations in the low-dimensional quasi-triangular lattice compound Ce2Ge2In",

abstract = "The structural, magnetic and thermal properties of Ce2Ge 2In have been investigated between 0.36 and 300 K. The specific heat exhibits a peak and the AC susceptibility exhibits a weak anomaly at 2 K, whereas neutron diffraction does not show any signs of long-range magnetic ordering down to 0.36 K. Inelastic neutron scattering at 17 K shows two well-defined crystal field (CF) excitations at 11.6 and 20.1 meV, indicating a doublet CF ground state of the Ce3+ ion in agreement with the entropy ∼R ln 2 at 10 K derived from the heat capacity data.",

keywords = "CeGeIn, Crystal field excitations, Heat capacity, Kondo system, Neutron diffraction",

author = "Adroja, {D. T.} and E. Matsuoka and Hillier, {A. D.} and W. Kockelmann and T. Takabatake and Jung, {M. H.} and Taylor, {J. W.}",

year = "2005",

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doi = "10.1016/j.physb.2005.01.118",

language = "English",

volume = "359-361",

pages = "314--316",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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TY - JOUR

T1 - Crystal field excitations in the low-dimensional quasi-triangular lattice compound Ce2Ge2In

AU - Adroja, D. T.

AU - Matsuoka, E.

AU - Hillier, A. D.

AU - Kockelmann, W.

AU - Takabatake, T.

AU - Jung, M. H.

AU - Taylor, J. W.

PY - 2005/4/30

Y1 - 2005/4/30

N2 - The structural, magnetic and thermal properties of Ce2Ge 2In have been investigated between 0.36 and 300 K. The specific heat exhibits a peak and the AC susceptibility exhibits a weak anomaly at 2 K, whereas neutron diffraction does not show any signs of long-range magnetic ordering down to 0.36 K. Inelastic neutron scattering at 17 K shows two well-defined crystal field (CF) excitations at 11.6 and 20.1 meV, indicating a doublet CF ground state of the Ce3+ ion in agreement with the entropy ∼R ln 2 at 10 K derived from the heat capacity data.

AB - The structural, magnetic and thermal properties of Ce2Ge 2In have been investigated between 0.36 and 300 K. The specific heat exhibits a peak and the AC susceptibility exhibits a weak anomaly at 2 K, whereas neutron diffraction does not show any signs of long-range magnetic ordering down to 0.36 K. Inelastic neutron scattering at 17 K shows two well-defined crystal field (CF) excitations at 11.6 and 20.1 meV, indicating a doublet CF ground state of the Ce3+ ion in agreement with the entropy ∼R ln 2 at 10 K derived from the heat capacity data.

KW - CeGeIn

KW - Crystal field excitations

KW - Heat capacity

KW - Kondo system

KW - Neutron diffraction

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DO - 10.1016/j.physb.2005.01.118

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