We have paid attention to the ground state of the high-temperature magnetic phase of YbInCu4 which exhibits a first-order valence transition at 42 K. The high-temperature phase, which shows Curie-Weiss paramagnetism of Yb3+, is stabilized down to zero temperature by the application of pressure and/or substitution of Y for Yb. We have measured magnetization of Yb0.8Y0.2InCu4 under high pressure in the low temperature ranges down to 0.6 K and could observe suppression of the valence transition and occurrence of ferromagnetism at the same time. The ferromagnetism is characterized by a low Curie temperature of 1.8 K and very small spontaneous magnetization of 0.067 μB/Yb.
|ジャーナル||Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu|
|出版ステータス||出版済み - 1 1 2005|
All Science Journal Classification (ASJC) codes
- 化学 (全般)