TRIUMF

Exp. No.

M1738 — Approved

Title of Experiment

Superconductivity and 4f-electron spin fluctuation in LnO1-xFxBiS2

Spokesperson(s) for Group

Safety Coordinator(s) for Group

Current Members of Group

Name Institution Status % of research time devoted to experiment
W. Higemoto Japan Atomic Energy Agency Research Scientist
Y. Aoki Tokyo Metropolitan University Professor
T.U. Ito Japan Atomic Energy Agency Research Scientist
Tatsuma D. Matsuda Tokyo Metropolitan University Associate Professor
Kohei Oshima Tokyo institute of technology Student (Graduate)

Abstract

Recent studies on BiS2-based layered superconductor, LnO1-xFxBiS2 (Ln:rare-earth), showed several unconventional properties, namely, possible coexistence of superconductivity and ferromagnetism, unconventional non-Fermi liquid behavior, heavy fermion like state. We intend to study magnetism and superconductivity under strong 4f-electron spin fluctuation by means of mSR method in BiS2-based superconductor CeO1-xFxBiS2 and NdO0.5F0.5BiS2.