ESR study of the undoped heavy-fermion compound YbRh2Si2

The electron spin resonance (ESR) of the heavy-fermion metal YbRh2Si2 has been studied. The angular variation and the temperature dependence of the ESR line width have been measured in YbRh2Si2 single crystals in the temperature range of 4–25 K. The characteristic spin-fluctuation temperatureT* ∼ 17...

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Bibliographic Details
Published in:Applied magnetic resonance 2004-03, Vol.27 (1-2), p.87-91
Main Authors: Ivanshin, V. A., Zverev, D. G.
Format: Article
Language:English
Subjects:
Critical point
Electron paramagnetic resonance
Electron spin
Fermions
Single crystals
Spin resonance
Temperature dependence
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Summary:The electron spin resonance (ESR) of the heavy-fermion metal YbRh2Si2 has been studied. The angular variation and the temperature dependence of the ESR line width have been measured in YbRh2Si2 single crystals in the temperature range of 4–25 K. The characteristic spin-fluctuation temperatureT* ∼ 17 K estimated from these studies coincides very well with other experimental data. A well-behaved ESR signal due to local Yb3+ moments strongly supports the localized moment scenario for heavy-fermion quantum critical points.
ISSN:0937-9347
1613-7507
DOI:10.1007/BF03166304