A μSR study of the magnetic properties of CeAgSb2

JA Dann; AD Hillier; Jonathan Gordon Maclaren Armitage; R Cywinski

A μSR study of the magnetic properties of CeAgSb₂

JA Dann, AD Hillier, Jonathan Gordon Maclaren Armitage, R Cywinski

School of Physics and Astronomy

Research output: Other contribution

Abstract

Zero and longitudinal field muon spin relaxation measurements have been performed on the Kondo lattice system CeAgSb2 in the magnetically ordered (T < 10 K) and paramagnetic (T > 10 K) states. The resulting spectra are consistent with a single muon site which senses a unique coherent internal field of 53 mT at low temperatures and dynamic atomic fields, arising from extremely rapid RKKY-dominated paramagnetic fluctuations of the Ce3+ spins, at higher temperatures. Small stepwise increases in the temperature dependence of the muon relaxation rate at 60 and 17 It appear to be coincident with the Kondo temperature and the onset of coherence, respectively. (C) 2000 Elsevier Science B.V. All rights reserved.

Original language	English
Volume	289
Publication status	Published - Aug 2000

Keywords

Kondo lattice
heavy fermion
magnetic order
KONDO-LATTICE
SYSTEMS
T=NI
CU
AG

Cite this

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title = "A μSR study of the magnetic properties of CeAgSb2",

abstract = "Zero and longitudinal field muon spin relaxation measurements have been performed on the Kondo lattice system CeAgSb2 in the magnetically ordered (T < 10 K) and paramagnetic (T > 10 K) states. The resulting spectra are consistent with a single muon site which senses a unique coherent internal field of 53 mT at low temperatures and dynamic atomic fields, arising from extremely rapid RKKY-dominated paramagnetic fluctuations of the Ce3+ spins, at higher temperatures. Small stepwise increases in the temperature dependence of the muon relaxation rate at 60 and 17 It appear to be coincident with the Kondo temperature and the onset of coherence, respectively. (C) 2000 Elsevier Science B.V. All rights reserved.",

keywords = "Kondo lattice, heavy fermion, magnetic order, KONDO-LATTICE, SYSTEMS, T=NI, CU, AG",

author = "JA Dann and AD Hillier and Armitage, {Jonathan Gordon Maclaren} and R Cywinski",

note = "Physica B: Physics of Condensed Matter",

year = "2000",

month = aug,

language = "English",

volume = "289",

type = "Other",

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TY - GEN

T1 - A μSR study of the magnetic properties of CeAgSb2

AU - Dann, JA

AU - Hillier, AD

AU - Armitage, Jonathan Gordon Maclaren

AU - Cywinski, R

N1 - Physica B: Physics of Condensed Matter

PY - 2000/8

Y1 - 2000/8

N2 - Zero and longitudinal field muon spin relaxation measurements have been performed on the Kondo lattice system CeAgSb2 in the magnetically ordered (T < 10 K) and paramagnetic (T > 10 K) states. The resulting spectra are consistent with a single muon site which senses a unique coherent internal field of 53 mT at low temperatures and dynamic atomic fields, arising from extremely rapid RKKY-dominated paramagnetic fluctuations of the Ce3+ spins, at higher temperatures. Small stepwise increases in the temperature dependence of the muon relaxation rate at 60 and 17 It appear to be coincident with the Kondo temperature and the onset of coherence, respectively. (C) 2000 Elsevier Science B.V. All rights reserved.

AB - Zero and longitudinal field muon spin relaxation measurements have been performed on the Kondo lattice system CeAgSb2 in the magnetically ordered (T < 10 K) and paramagnetic (T > 10 K) states. The resulting spectra are consistent with a single muon site which senses a unique coherent internal field of 53 mT at low temperatures and dynamic atomic fields, arising from extremely rapid RKKY-dominated paramagnetic fluctuations of the Ce3+ spins, at higher temperatures. Small stepwise increases in the temperature dependence of the muon relaxation rate at 60 and 17 It appear to be coincident with the Kondo temperature and the onset of coherence, respectively. (C) 2000 Elsevier Science B.V. All rights reserved.

KW - Kondo lattice

KW - heavy fermion

KW - magnetic order

KW - KONDO-LATTICE

KW - SYSTEMS

KW - T=NI

KW - CU

KW - AG

UR - http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVH-40D617P-8&_coverDate=08%2F31%2F2000&_alid=204291421&_rdoc=1&_fmt=&_orig=search&_qd=1&_cdi=5535&_sort=d&view=c&_acct=C000050565&_version=1&_urlVersion=0&_userid=1026342&md5=3025460a67af6caf0717b5021c8b2bb8

M3 - Other contribution

VL - 289

ER -

A μSR study of the magnetic properties of CeAgSb₂

Abstract

Keywords

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