Abstract
Pressure-induced superconductivity is found in UIr without inversion symmetry. The pressure-temperature phase diagram has been investigated by means of the electrical resistivity and magnetization measurements under high pressure. The phase diagram consists of two magnetic phases, the Ising-like ferromagnetic phase (FM1) at low pressures and another magnetic phase (FM2) with the small ferromagnetic component along the [101] direction at high pressures. Superconductivity is observed in the narrow pressure range near the disappearance point of the FM2 phase, where the temperature dependence of resistivity follows the non-Fermi liquid form of T1.6. From these experimental facts, the superconductivity is considered to be associated with the critical fluctuation with the disappearance of FM2 phase.
Original language | English |
---|---|
Pages (from-to) | 3129-3134 |
Number of pages | 6 |
Journal | journal of the physical society of japan |
Volume | 73 |
Issue number | 11 |
DOIs | |
Publication status | Published - Nov 2004 |
Keywords
- Critical fluctuation
- Ferromagnetism
- Inversion symmetry
- Superconductivity
- UIr
ASJC Scopus subject areas
- Physics and Astronomy(all)