TRIUMF

Exp. No.

M1664 — Approved

Title of Experiment

muSR Studies of three new Mott systems

Spokesperson(s) for Group

Safety Coordinator(s) for Group

Current Members of Group

Name Institution Status % of research time devoted to experiment
B. Frandsen Columbia University Student (PhD)
G.M. Luke McMaster University Professor
Y.J. Uemura Columbia University Professor
Y. Cai McMaster University Student (PhD)
S.C. Cheung Columbia University Student (PhD)
A. Gauzzi Sorbonne Universités - Université Pierre et Marie Curie Professor
Z. Guguchia Paul Scherrer Institute Research Scientist
A.M. Hallas McMaster University Student (PhD)
Y. Klein Sorbonne Universités - Université Pierre et Marie Curie Student (Graduate)
L. Liu Columbia University Student (PhD)
S. Miyasaka Osaka University Professor
T. Munsie McMaster University Student (PhD)
S.Shamoto JAEA ASRC Research Scientist
Y. Tokura JRCAT/University of Tokyo Professor
M.N. Wilson McMaster University Student (PhD)

Abstract

Certain materials, including high-temperature superconductors, transition from a metal to an unconventional insulator called a Mott insulator. Our previous muSR experiments on two families of Mott insulators revealed widespread paramagnetic / ordered phase separation near the disappearance of magnetic order. We will extend these studies to additional Mott insulators to better understand this surprising phenomenon and elucidate the roles of charge conduction, magnetism and lattice.