Controlled Symmetry Breaking in Superconducting UPt3
D. S. Jin, A. Husmann, T. F. Rosenbaum, T. E. Steyer, K. T. Faber
DOI 10.1103/PhysRevLett.78.1775 · Physical Review Letters
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Abstract
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 UPt3. We suppress the basal-plane antiferromagnetism and merge the two transitions through c-axis stress, and then break the hexagonal symmetry of the basal plane in a regulated manner through stress along 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.487 | 0.15 GPa | midpoint |
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