Polarized-Neutron Scattering Study of the Cooper-Pair Moment in Sr2RuO4

J. A. Duffy; S. M. Hayden; Y. Maeno; Z. Mao; J. Kulda; G. J. McIntyre

doi:10.1103/PhysRevLett.85.5412

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Polarized-Neutron Scattering Study of the Cooper-Pair Moment in Sr2RuO4

J. A. Duffy, S. M. Hayden, Y. Maeno, Z. Mao, J. Kulda, G. J. McIntyre

DOI 10.1103/PhysRevLett.85.5412 · Physical Review Letters

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Abstract

We report a study of the magnetization density in the mixed state of the unconventional superconductor Sr2RuO4. On entering the superconducting state we find no change in the magnitude or distribution of the induced moment for a magnetic field of 1 T applied within the Ru O2 planes. Our results are consistent with a spin-triplet Cooper pairing with spins lying in the basal plane. This is in contrast with similar experiments performed on conventional and high- Tc superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.47	Pressure not reported	onset
V3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown