Ru NMR probe of spin susceptibility in the superconducting state of Sr2RuO4

K. Ishida, H. Mukuda, H. Mukuda, Y. Kitaoka, Y. Kitaoka, Z. Q. Mao, Z. Q. Mao, H. Fukazawa, Y. Maeno, Y. Maeno

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Abstract

We report 99Ru Knight-shift (99K) measurement on the high-quality Sr2RuO4 with a superconducting transition temperature Tc∼ 1.5 K. Its spin component, 99Ks due to the core polarization effect caused by Ru-4d spins, is nearly one order of magnitude larger than that of the 17O Knight shift (17Ks). The 4d-spin susceptibility that has been more precisely measured from 99Ks than 17Ks shows no change across Tc at all. The present result reinforces that Sr2RuO4 is the spin-triplet p-wave superconductor in which electrons are bound together in parallel-spin pairs parallel to the RuO2 plane.

Original languageEnglish (US)
Article number060507
Pages (from-to)605071-605074
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number6
DOIs
StatePublished - 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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