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Author Pedrazzini, P.; Jaccard, D.; Deppe, M.; Geibel, C.; Sereni, J.G.
Title Multiprobe high-pressure experiments in CePd0.6Rh0.4 and CePd3 Type Journal Article
Year 2009 Publication Physica B: Condensed Matter Abbreviated Journal Physica B
Volume 404 Issue 19 Pages 2898-2903
Keywords Ce compounds; Ferromagnetism; Quantum phase transition; High pressure; Resistivity; Seebeck coefficient; Specific heat
Abstract Results of recent multiprobe high-pressure experiments on ferromagnetic CePd0.6Rh0.4 and intermediate-valent CePd3 are presented. Simultaneous resistivity (ρ), thermopower (S), and ac heat capacity measurements show that the long-range ferromagnetic state of CePd0.6Rh0.4 vanishes in the proximity of a sharp valence-crossover pressure , i.e. before reaching a quantum critical point. However, a magnetic signal that is progressively suppressed is still detected at higher pressures. For CePd3, the results of simultaneous ρ(T,p) and S(T,p) measurements up to and down to the mK temperature range show a surprisingly weak pressure dependence.
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ISSN 0921-4526 ISBN Medium
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Call Number BT @ jsereni @ Serial (down) 561
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