Research ArticlePHYSICS
Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu2Si2
- Takuya Yamashita1,*,
- Takaaki Takenaka2,*,
- Yoshifumi Tokiwa1,*,
- Joseph A. Wilcox3,*,
- Yuta Mizukami2,
- Daiki Terazawa1,
- Yuichi Kasahara1,
- Shunichiro Kittaka4,
- Toshiro Sakakibara4,
- Marcin Konczykowski5,
- Silvia Seiro6,
- Hirale S. Jeevan6,
- Christoph Geibel6,
- Carsten Putzke3,
- Takafumi Onishi1,
- Hiroaki Ikeda7,
- Antony Carrington3,†,
- Takasada Shibauchi2,† and
- Yuji Matsuda1,†
- 1Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
- 2Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba 277-8561, Japan.
- 3H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK.
- 4Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
- 5Laboratoire des Solides Irradiés, École Polytechnique, CNRS, Commissariat à l’Energie Atomique et aux Energies Alternatives, Université Paris-Saclay, 91128 Palaiseau Cedex, France.
- 6Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
- 7Department of Physics, Ritsumeikan University, Kusatsu 525-8577, Japan.
- ↵†Corresponding author. Email: a.carrington{at}bristol.ac.uk (A.C.); shibauchi{at}k.u-tokyo.ac.jp (T.S.); matsuda{at}scphys.kyoto-u.ac.jp (Y.M.)
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Science Advances 23 Jun 2017:
Vol. 3, no. 6, e1601667
DOI: 10.1126/sciadv.1601667
