Controlled Symmetry Breaking in Superconducting UPt{sub 3}

Journal Article · Sat Mar 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.1775· OSTI ID:467457

Jin, D; Husmann, A; Rosenbaum, T ^[1]; Steyer, T; Faber, K ^[2]

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1. The James Franck Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637 (United States)
2. Department of Materials Science and Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, Illinois 60208 (United States)

We have developed a biaxial-stress calorimeter for use at milli-Kelvin temperatures to study the nature of the double superconducting transition in single crystal UPt{sub 3}. We suppress the basal-plane antiferromagnetism and merge the two transitions through {bold c}-axis stress, and then break the hexagonal symmetry of the basal plane in a regulated manner through stress along {bold {cflx a}}. We recover a double superconducting transition, but with a shift in the relative sizes of the specific heat jumps for the upper and lower transitions, as well as a different measure of the strength of the symmetry-breaking field. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 467457
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 78; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANTIFERROMAGNETIC MATERIALS
CALORIMETRY
COMPRESSION
MONOCRYSTALS
PLATINUM BASE ALLOYS
SPECIFIC HEAT
SUPERCONDUCTIVITY
SYMMETRY BREAKING
URANIUM ALLOYS
VERY HIGH PRESSURE
heavy fermion systems