[Zurück]

M. Yogi, Y. Kitaoka, H. Mukuda, S. Hashimoto, T. Yasuda, R. Settai, T.D. Matsuda, Y. Haga, Y. Onuki, P. Rogl, E. Bauer:
"Novel superconductivity in CePt₃Si: A ²⁹Si-NMR study";
Physica B: Condensed Matter, 378-380 (2006), S. 359 - 360.

Physica B: Condensed Matter
Volumes 378-380 , 1 May 2006, Pages 359-360
Proceedings of the International Conference on Strongly Correlated Electron Systems - SCES 2005

doi:10.1016/j.physb.2006.01.127
Copyright © 2006 Elsevier B.V. All rights reserved.

Novel superconductivity in CePt₃Si: A ²⁹Si-NMR study

M. Yogi a, Y. Kitaoka a, H. Mukuda a, S. Hashimoto b, T. Yasuda b, R. Settai b, T.D. Matsuda c, Y. Haga c, Y. Onuki b, c, P. Rogl d and E. Bauer e

a Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560 8531, Japan
b Graduate School of Science, Osaka University, Toyonaka, Osaka 560 0043, Japan
c Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319 1195, Japan
d Institut für Festkörperphysik, Technische Universität Wien, A 1040 Wien, Austria
e Institut für Physikalische Chemie, Universität Wien, A 1090 Wien, Austria

Available online 17 February 2006.

Abstract

We report a Knight-shift (²⁹K) study of ²⁹Si of the noncentrosymmetric heavy-fermion superconductor CePt₃Si. The spin part of ²⁹K is deduced to be K_s=0.13-0.18% and 0.19-0.22% at respective fields of H=2.0061 and 0.8671 T. The ²⁹K^c for the field direction H||c-axis unchanges across T_c, suggesting that a two-component order parameter composed of spin-singlet and spin-triplet pairing components is realized.

Keywords: Heavy fermion superconductivity; Antiferromagnetism; NMR; Knight shift

PACS classification codes: 74.70.Tx; 74.20.Rp; 76.30.−k; 76.60.Cp

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05938277

http://dx.doi.org/10.1016/j.physb.2006.01.127