High-pressure resistance study of UTe and USe
Low-temperature resistance measurements were performed on UTe and USe crystals in the pressure range from 1 GPa to 20 GPa. The Curie temperature, obtained as the maximum in the temperature derivative dR/dT, increases strongly with pressure. It has a maximum at 7.5 GPa for UTe and around 4.5 GPa for USe followed by a decrease with smaller slope at higher pressures. For UTe another anomaly in the R-T characteristic is observed above 10 GPa and ascribed to the presence of the B2 phase, which is known to form in a very sluggish phase transformation. The `Kondo like' behaviour of UTe at ambient conditions, previously reported, seems to disappear under pressure. USe shows a similar pressure dependence of the Curie temperature as UTe, with a maximum Curie temperature of 190 K at 4.5 GPa.
Bibliographic Reference: Paper presented: 22. Journées des Actinides, Méribel (FR), April 22-24, 1992
Availability: Text not available
Record Number: 199210812 / Last updated on: 1994-12-02
Original language: en
Available languages: en