Anomalous spin dynamics of CePdSb

A. J. Neville; B. D. Rainford; D. T. Adroja; H. Schober

doi:10.1016/0921-4526(96)00097-X

Anomalous spin dynamics of CePdSb

A. J. Neville, B. D. Rainford, D. T. Adroja, H. Schober

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

14 Citations (Scopus)

Abstract

CePdSb is one of the few compounds to show Kondo lattice behaviour and ferromagnetic order. Magnetometry and neutron diffraction show ferromagnetic order below 17.5 K. However heat capacity data show no anomaly at this temperature, but do show a rounded peak at 10 K. We have investigated the spin dynamics of CePdSb using both μSR and inelastic neutron scattering measurements. The μSR data show well defined signals well below T_c, with a progressive loss of asymmetry down to 10 K. The inelastic neutron scattering shows a spin wave excitation at low temperatures, but this collapses into a diffusive response at 10 K. This highly anomalous character of the spin dynamics provides insight into the behaviour of the thermal properties.

Original language	English
Pages (from-to)	271-274
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	223-224
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(96)00097-X
Publication status	Published - 2 Jun 1996
Externally published	Yes

ASJC Scopus subject areas

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

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10.1016/0921-4526(96)00097-X

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title = "Anomalous spin dynamics of CePdSb",

abstract = "CePdSb is one of the few compounds to show Kondo lattice behaviour and ferromagnetic order. Magnetometry and neutron diffraction show ferromagnetic order below 17.5 K. However heat capacity data show no anomaly at this temperature, but do show a rounded peak at 10 K. We have investigated the spin dynamics of CePdSb using both μSR and inelastic neutron scattering measurements. The μSR data show well defined signals well below Tc, with a progressive loss of asymmetry down to 10 K. The inelastic neutron scattering shows a spin wave excitation at low temperatures, but this collapses into a diffusive response at 10 K. This highly anomalous character of the spin dynamics provides insight into the behaviour of the thermal properties.",

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T1 - Anomalous spin dynamics of CePdSb

AU - Neville, A. J.

AU - Rainford, B. D.

AU - Adroja, D. T.

AU - Schober, H.

PY - 1996/6/2

Y1 - 1996/6/2

N2 - CePdSb is one of the few compounds to show Kondo lattice behaviour and ferromagnetic order. Magnetometry and neutron diffraction show ferromagnetic order below 17.5 K. However heat capacity data show no anomaly at this temperature, but do show a rounded peak at 10 K. We have investigated the spin dynamics of CePdSb using both μSR and inelastic neutron scattering measurements. The μSR data show well defined signals well below Tc, with a progressive loss of asymmetry down to 10 K. The inelastic neutron scattering shows a spin wave excitation at low temperatures, but this collapses into a diffusive response at 10 K. This highly anomalous character of the spin dynamics provides insight into the behaviour of the thermal properties.

AB - CePdSb is one of the few compounds to show Kondo lattice behaviour and ferromagnetic order. Magnetometry and neutron diffraction show ferromagnetic order below 17.5 K. However heat capacity data show no anomaly at this temperature, but do show a rounded peak at 10 K. We have investigated the spin dynamics of CePdSb using both μSR and inelastic neutron scattering measurements. The μSR data show well defined signals well below Tc, with a progressive loss of asymmetry down to 10 K. The inelastic neutron scattering shows a spin wave excitation at low temperatures, but this collapses into a diffusive response at 10 K. This highly anomalous character of the spin dynamics provides insight into the behaviour of the thermal properties.

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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ER -

Anomalous spin dynamics of CePdSb

Abstract

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