Pressure-induced anomalies in itinerant-electron metamagnetic properties around the critical end point in la (Fe0.89 Si0.11) 13

Asaya Fujita, K. Fukamichi, M. Yamada, T. Goto

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27 Citations (Scopus)

Abstract

Pressure-induced anomalies around the critical end point in an itinerant-electron metamagnetic La (Fe0.89 Si0.11) 13 compound have been investigated. The Curie temperature TC is decreased from 189 to 0 K by applying a critical pressure pC =1.3 GPa. The relation TC (pC -p) 0.5 is explained by the spin-fluctuation theory based on the Landau expansion. A susceptibility maximum appears at Tmax ∼70 K above p=1.2 GPa. On the other hand, the critical point (T0, μ0 H0) of the transition is lowered to T0 =14 K and μ0 H0 =2.5 T at 1.4 GPa, showing no static ferromagnetic moment in the field-induced state below T0.

Original languageEnglish
Article number104420
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number10
DOIs
Publication statusPublished - 2006 Mar 24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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