TY - JOUR
T1 - Magnetic properties of weak itinerant electron ferromagnet CrAlGe
AU - Yoshinaga, Soshi
AU - Mitsui, Yoshifuru
AU - Umetsu, Rie Y.
AU - Uwatoko, Yoshiya
AU - Koyama, Keiichi
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/7/4
Y1 - 2017/7/4
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/868/1/012018
DO - 10.1088/1742-6596/868/1/012018
M3 - Conference article
AN - SCOPUS:85023756865
VL - 868
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012018
T2 - International Workshop on Itinerant-Electron Magnetism 2015
Y2 - 25 September 2015 through 27 September 2015
ER -