Evidence from 77Se Knight shifts for triplet superconductivity in (TMTSF)2PF6

I. J. Lee; D. S. Chow; W. G. Clark; M. J. Strouse; M. J. Naughton; P. M. Chaikin; S. E. Brown

doi:10.1103/PhysRevB.68.092510

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Evidence from 77Se Knight shifts for triplet superconductivity in (TMTSF)2PF6

I. J. Lee, D. S. Chow, W. G. Clark, M. J. Strouse, M. J. Naughton, P. M. Chaikin, S. E. Brown

DOI 10.1103/PhysRevB.68.092510 · Physical Review B

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Abstract

We present 77Se nuclear magnetic resonance (NMR) Knight shift (K) studies in pressurized (TMTSF)2PF6 with a magnetic field aligned along the b axis, perpendicular to the conducting chains but parallel to the conducting plane. On cooling deep into the superconducting state, no observable change in K from both spin echo and free induction decay signal was found. This strongly suggests triplet superconductivity in (TMTSF)2PF6.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
(TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.18	Pressure unresolved	onset
(TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.8	Pressure unresolved	zero_resistance
(TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.7	0.64 GPa	onset
(TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.5	0.64 GPa	unknown