Magnetism of the Kondo compound CeAuAl

D. T. Adroja; B. D. Rainford; Latika Menon; S. K. Malik

doi:10.1088/0953-8984/9/22/024

Magnetism of the Kondo compound CeAuAl

D. T. Adroja, B. D. Rainford, Latika Menon, S. K. Malik

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

8 Citations (Scopus)

Abstract

The magnetism of the Kondo lattice compound CeAuAl has been investigated through neutron scattering, magnetoresistance, transport and magnetic measurements. Neutron diffraction at 1.5 K revealed a modulated antiferromagnetic structure. Inelastic neutron scattering spectra showed two well defined crystal-field excitations at 24.2 meV and 45.8 meV. The crystal-field parameters have been estimated from an analysis of the neutron spectra and susceptibility data. An estimate of the Kondo temperature has been made by comparison of the low-temperature negative magnetoresistance with Schlottmann's scaling form for the J = 1/2 Kondo impurity. An analysis of thermoelectric power data has been made on the basis of Fischer's theory, which allows Kondo and crystal-field effects to be taken into account.

Original language	English
Pages (from-to)	4743-4753
Number of pages	11
Journal	Journal of Physics Condensed Matter
Volume	9
Issue number	22
DOIs	https://doi.org/10.1088/0953-8984/9/22/024
Publication status	Published - 2 Jun 1997
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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title = "Magnetism of the Kondo compound CeAuAl",

abstract = "The magnetism of the Kondo lattice compound CeAuAl has been investigated through neutron scattering, magnetoresistance, transport and magnetic measurements. Neutron diffraction at 1.5 K revealed a modulated antiferromagnetic structure. Inelastic neutron scattering spectra showed two well defined crystal-field excitations at 24.2 meV and 45.8 meV. The crystal-field parameters have been estimated from an analysis of the neutron spectra and susceptibility data. An estimate of the Kondo temperature has been made by comparison of the low-temperature negative magnetoresistance with Schlottmann's scaling form for the J = 1/2 Kondo impurity. An analysis of thermoelectric power data has been made on the basis of Fischer's theory, which allows Kondo and crystal-field effects to be taken into account.",

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T1 - Magnetism of the Kondo compound CeAuAl

AU - Adroja, D. T.

AU - Rainford, B. D.

AU - Menon, Latika

AU - Malik, S. K.

PY - 1997/6/2

Y1 - 1997/6/2

N2 - The magnetism of the Kondo lattice compound CeAuAl has been investigated through neutron scattering, magnetoresistance, transport and magnetic measurements. Neutron diffraction at 1.5 K revealed a modulated antiferromagnetic structure. Inelastic neutron scattering spectra showed two well defined crystal-field excitations at 24.2 meV and 45.8 meV. The crystal-field parameters have been estimated from an analysis of the neutron spectra and susceptibility data. An estimate of the Kondo temperature has been made by comparison of the low-temperature negative magnetoresistance with Schlottmann's scaling form for the J = 1/2 Kondo impurity. An analysis of thermoelectric power data has been made on the basis of Fischer's theory, which allows Kondo and crystal-field effects to be taken into account.

AB - The magnetism of the Kondo lattice compound CeAuAl has been investigated through neutron scattering, magnetoresistance, transport and magnetic measurements. Neutron diffraction at 1.5 K revealed a modulated antiferromagnetic structure. Inelastic neutron scattering spectra showed two well defined crystal-field excitations at 24.2 meV and 45.8 meV. The crystal-field parameters have been estimated from an analysis of the neutron spectra and susceptibility data. An estimate of the Kondo temperature has been made by comparison of the low-temperature negative magnetoresistance with Schlottmann's scaling form for the J = 1/2 Kondo impurity. An analysis of thermoelectric power data has been made on the basis of Fischer's theory, which allows Kondo and crystal-field effects to be taken into account.

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Magnetism of the Kondo compound CeAuAl

Abstract

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