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Title

Suppression of the Grüneisen parameter of CeCu6 by a magnetic field

Authors
Holtmeier, S.
de Visser, A.
Haen, P.
Flouquet, J.
Published in Physica B: Condensed Matter. 1995, vol. 205, no. 1, p. 1-3
Abstract In order to investigate the suppression of the heavy-fermion state of CeCu6 by a magnetic field (B ∥ c) we have measured the coefficients of thermal expansion of a single-crystalline sample (αa, αb, αc) in the temperature range 0.3–10 K in fields up to 8 T. The electronic Grüneisen parameter (Γhf = Vmav/κγ), which amounts to 80 in zero field (T → 0), is reduced by a factor 10 in a field of 8 T. This enormous drop of Γ is attributed to a rapid suppression of the magnetic inter-site correlations.
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HOLTMEIER, S. et al. Suppression of the Grüneisen parameter of CeCu6 by a magnetic field. In: Physica B: Condensed Matter, 1995, vol. 205, n° 1, p. 1-3. https://archive-ouverte.unige.ch/unige:104972

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Deposited on : 2018-06-05

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