Odd-parity superconductivity in Sr2RuO4

K. D. Nelson, Zhiqiang Mao, Y. Maeno, Ying Liu

Research output: Contribution to journalArticlepeer-review

311 Scopus citations


Phase-sensitive measurements were made on Sr2RuO4 to establish unambiguously the odd-parity pairing in this material. The critical current of Au0.5In0.5-Sr2RuO4 superconducting quantum interference devices prepared on Sr2RuO 4 single crystals was found to be a maximum for devices with junctions on the same side of the crystal and a minimum for devices with junctions on opposite sides, in the limit of zero magnetic flux; these findings indicate that the phase of the superconducting order parameter in Sr 2RuO4 changes by π under inversion. This result verifies the odd-parity pairing symmetry and the formation of spin-triplet Cooper pairs in Sr2RuO4.

Original languageEnglish (US)
Pages (from-to)1151-1154
Number of pages4
Issue number5699
StatePublished - Nov 12 2004

All Science Journal Classification (ASJC) codes

  • General


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