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Title: Anisotropic pairing in superconducting Sr{sub 2}RuO{sub 4}: Ru NMR and NQR studies

Abstract

Ru NMR and nuclear quadrupole resonance studies are reported on single-crystal Sr{sub 2}RuO{sub 4} (T{sub c}=0.7 K) with the same layered perovskite structure as La{sub 2}CuO{sub 4}. The Pauli spin susceptibility deduced from the Ru Knight shift is found to be largely enhanced by a factor of {approximately}5.4 as compared with the value from the band calculation. In the superconducting state, the nuclear spin-lattice relaxation rate 1/T{sub 1} exhibits a sharp decrease with no coherence peak just below T{sub c} and the T{sub 1}T=constant behavior well below T{sub c}, suggesting that the anisotropic pairing state is realized as in heavy-fermion and high-T{sub c} superconductors. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
; ;  [1]; ; ;  [2]; ;  [3]
  1. Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560 (Japan)
  2. Department of Physics, Faculty of Science, Kyoto University, Kyoto 606-01 (Japan)
  3. Department of Physics, Faculty of Science, Hiroshima University, Higashi-Hiroshima 739 (Japan)
Publication Date:
OSTI Identifier:
549307
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 56; Journal Issue: 2; Other Information: PBD: Jul 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 66 PHYSICS; STRONTIUM OXIDES; SUPERCONDUCTIVITY; MAGNETIC SUSCEPTIBILITY; RUTHENIUM OXIDES; RUTHENIUM; NUCLEAR MAGNETIC RESONANCE; NUCLEAR QUADRUPOLE RESONANCE; KNIGHT SHIFT; PEROVSKITES; HIGH-TC SUPERCONDUCTORS; TRANSITION TEMPERATURE; SPIN-LATTICE RELAXATION; ANISOTROPY

Citation Formats

Ishida, K, Kitaoka, Y, Asayama, K, Ikeda, S, Nishizaki, S, Maeno, Y, Yoshida, K, and Fujita, T. Anisotropic pairing in superconducting Sr{sub 2}RuO{sub 4}: Ru NMR and NQR studies. United States: N. p., 1997. Web. doi:10.1103/PhysRevB.56.R505.
Ishida, K, Kitaoka, Y, Asayama, K, Ikeda, S, Nishizaki, S, Maeno, Y, Yoshida, K, & Fujita, T. Anisotropic pairing in superconducting Sr{sub 2}RuO{sub 4}: Ru NMR and NQR studies. United States. https://doi.org/10.1103/PhysRevB.56.R505
Ishida, K, Kitaoka, Y, Asayama, K, Ikeda, S, Nishizaki, S, Maeno, Y, Yoshida, K, and Fujita, T. 1997. "Anisotropic pairing in superconducting Sr{sub 2}RuO{sub 4}: Ru NMR and NQR studies". United States. https://doi.org/10.1103/PhysRevB.56.R505.
@article{osti_549307,
title = {Anisotropic pairing in superconducting Sr{sub 2}RuO{sub 4}: Ru NMR and NQR studies},
author = {Ishida, K and Kitaoka, Y and Asayama, K and Ikeda, S and Nishizaki, S and Maeno, Y and Yoshida, K and Fujita, T},
abstractNote = {Ru NMR and nuclear quadrupole resonance studies are reported on single-crystal Sr{sub 2}RuO{sub 4} (T{sub c}=0.7 K) with the same layered perovskite structure as La{sub 2}CuO{sub 4}. The Pauli spin susceptibility deduced from the Ru Knight shift is found to be largely enhanced by a factor of {approximately}5.4 as compared with the value from the band calculation. In the superconducting state, the nuclear spin-lattice relaxation rate 1/T{sub 1} exhibits a sharp decrease with no coherence peak just below T{sub c} and the T{sub 1}T=constant behavior well below T{sub c}, suggesting that the anisotropic pairing state is realized as in heavy-fermion and high-T{sub c} superconductors. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevB.56.R505},
url = {https://www.osti.gov/biblio/549307}, journal = {Physical Review, B: Condensed Matter},
number = 2,
volume = 56,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 1997},
month = {Tue Jul 01 00:00:00 EDT 1997}
}