Abstract
We measured magnetization of Yb0.8 Y0.2InCu4 as a function of temperature down to 0.6 K, pressure up to 1.2 GPa and magnetic field up to 9 T in order to investigate what kind of ground state is realized in the high-temperature (HT) phase of YbInCu4. It is found that applying pressure of P ≥ 0.8 GPa collapses the valence transition and induces weak ferromagnetism at the lowest temperature in Yb0.8 Y0.2InCu4. The ferromagnetic phase at 1.2 GPa is characterized by a low Curie temperature of 1.7 K and an extremely small ordered moment of 0.05μB/Yb, although a Yb ion is in the tri-valent state. Some itinerancy in magnetism may play a key role in the ferromagnetism and the valence transition.
Original language | English |
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Pages (from-to) | 1211-1213 |
Number of pages | 3 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 63 |
Issue number | 6-8 |
DOIs | |
Publication status | Published - Jun 1 2002 |
Externally published | Yes |
Event | Proceedings of the 8th ISSP International Symposium - Tokyo, Japan Duration: Nov 2 2001 → Nov 5 2001 |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics