Nonunitary superconducting state in UPt3
Tetsuo Ohmi, Kazushige Machida
DOI 10.1103/PhysRevLett.71.625 · Physical Review Letters
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Abstract
We point out that a nonunitary pairing state is realized in the so-called B phase in a low T and H region of UPt3 where time inversion is already known to be broken. This nonunitarity leads us to understand several long-standing puzzles, including the large ‘‘residual’’ T-linear specific heat and thermal conductivity at lower T. The B phase is concluded to be spin-triplet odd parity (so-called β phase), belonging to a one-dimensional representation. A recent muon spin rotation result, detecting the intrinsic moment in the B phase, is consistent with this identification.
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. | 0.51 | Pressure not reported | onset |
| UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.46 | Pressure not reported | midpoint |
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