Magnetic properties of weak itinerant electron ferromagnet CrAlGe

Soshi Yoshinaga, Yoshifuru Mitsui, Rie Y. Umetsu, Yoshiya Uwatoko, Keiichi Koyama

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

Magnetic properties for CrAlGe with an orthorhombic TiSi2-type structure were investigated under ambient pressure and hydrostatic pressure. CrAlGe is ferromagnetic at the temperature below Curie temperature T C of 80 K and has the spontaneous magnetic moment p s of 0.41 μ B/f.u. at 5 K and the effective moment p eff of 1.89 μ B/f.u. under ambient pressure. For the temperature T below 30 K, the decrease in p s(T) 2/p s(5K)2 was proportional to T 2. However, the decrease in p s(T) 2/p s(5K)2 was proportional to T 4/3 for 30 K < T < T C. The ratio p eff/p s was consistent with the theoretical curve of the generalized Rhodes-Wohlfarth plot (Takahashi plot). Obtained results suggest that CrAlGe is a weak itinerant electron ferromagnet. By applying a high pressure of 1 GPa, T C decreased by approximately 10 K.

Original languageEnglish
Article number012018
JournalJournal of Physics: Conference Series
Volume868
Issue number1
DOIs
Publication statusPublished - 2017 Jul 4
EventInternational Workshop on Itinerant-Electron Magnetism 2015 - Kyoto, Japan
Duration: 2015 Sep 252015 Sep 27

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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