Effect of pressure on spin fluctuations and superconductivity in heavy-fermion UPt3

Journal Article · Fri Feb 01 04:00:00 EST 1985 · Phys. Rev. B: Solid State; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.1654· OSTI ID:6150314

Willis, J O; Thompson, J D; Fisk, Z; de Visser, A; Franse, J J.M.; Menovsky, A

The authors have determined the effect of hydrostatic pressure on the susceptibility, on the TS temperature dependence of the spin-fluctuation resistivity, and on superconductivity in UPt3. The spin-fluctuation temperature T/sub s/, derived from the slope of resistivity versus TS, is used within a Fermi-liquid picture to calculate the susceptibility chi at T = 0 K. The depression of this calculated chi with pressure agrees with the directly measured value delta 1nchi/delta P = -24 Mbar . Both the superconducting transition temperature T/sub c/ and the initial slope of the upper critical field also decrease under pressure. The authors find that delta 1nT/sub c//delta P = -25 Mbar and speculate upon correlations between chi and T/sub c/. 17 references, 4 figures.

• Research Organization: Los Alamos National Lab., NM
• OSTI ID: 6150314
• Journal Information: Phys. Rev. B: Solid State; (United States), Journal Name: Phys. Rev. B: Solid State; (United States) Vol. 31:3; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
ANGULAR MOMENTUM
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH PRESSURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PLATINUM ALLOYS
PLATINUM METAL ALLOYS
PRESSURE EFFECTS
SPIN
SUPERCONDUCTIVITY
URANIUM ALLOYS