TY - JOUR
T1 - Spin fluctuation in amorphous YNi alloys
AU - Fujita, Asaya
AU - Chiang, Te Hsuan
AU - Kataoka, Noriyuki
AU - Fukamichi, Kazuaki
PY - 1994/5/15
Y1 - 1994/5/15
N2 - The effects of thermal spin fluctuation on the magnetic properties and its concentration dependence are investigated for ferromagnetic amorphous YNi alloys. The T 4 3 dependence of the square of the magnetization M2 is observed in amorphous Y12Ni88 and Y14Ni86 alloys. The validity of this relation becomes poor as the Ni concentration increases. Spontaneous volume magnetostriction μs is observed in these alloys. The value of μs becomes larger with increasing Ni concentration, indicating an increase in the spin fluctuation. The amplitude of the local spin-density fluctuation for amorphous Y10Ni90 alloy saturates after a linear increase above the Curie temperature TC. The inverse magnetic susceptibility for amorphous Y10Ni90 alloy follows the Curie-Weiss law above TC and shows a change in the slope at the temperature corresponding to the saturation of the amplitude.
AB - The effects of thermal spin fluctuation on the magnetic properties and its concentration dependence are investigated for ferromagnetic amorphous YNi alloys. The T 4 3 dependence of the square of the magnetization M2 is observed in amorphous Y12Ni88 and Y14Ni86 alloys. The validity of this relation becomes poor as the Ni concentration increases. Spontaneous volume magnetostriction μs is observed in these alloys. The value of μs becomes larger with increasing Ni concentration, indicating an increase in the spin fluctuation. The amplitude of the local spin-density fluctuation for amorphous Y10Ni90 alloy saturates after a linear increase above the Curie temperature TC. The inverse magnetic susceptibility for amorphous Y10Ni90 alloy follows the Curie-Weiss law above TC and shows a change in the slope at the temperature corresponding to the saturation of the amplitude.
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U2 - 10.1016/0921-5093(94)90776-5
DO - 10.1016/0921-5093(94)90776-5
M3 - Article
AN - SCOPUS:0028428260
VL - 181-182
SP - 950
EP - 953
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - C
ER -