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No.81 (2006/3) >

 
Title :長距離秩序の消失する領域におけるコバルトの磁化状態の解明 : 擬二元化合物Y_1-xGd_xCo_2の磁場および圧力中の電気抵抗
Title alternative :Investigation on the instability of Co-magnetization around disappearance of the long range ordering : Electrical resistivity of Y_1-xGd_xCo_2 in magnetic field and under hydrostatic pressure
Authors :高江洲, 義尚
仲間, 隆男
矢ケ崎, 克馬
Burkov, A.T
Authors alternative :Takaesu, Yoshinao
Nakama, Takao
Yagasaki, Katsuma
Issue Date :Mar-2006
Abstract :Electrical resistivity of Y_<1-x>Gd_xCo_2 system has been measured at temperatures from 2 K to 300 K in magnetic fields up to 15 T and under pressure up to 10 GPa. The electrical resistivity of the compounds with the composition of x < 0.3 show anomalous dependences of composition and magnetic field at low temperatures. The pressure effect on electrical resistivity of Y_<1-x>Gd_Co_2 at low temperatures is in good agreement with the variation of magnetoresistance. The anomalous behavior can be explained by an interplay of metamagnetic instability of Co 3d electrons and structural disorder within rare earth sublattice.
Type Local :紀要論文
ISSN :0286-9640
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/9187
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.81 p.1 -10
Appears in Collections:No.81 (2006/3)

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