1. Graduate School of Science, Hokkaido University, Sapporo, Japan
2. High Field Laboratory for Superconducting Materials, Institute for Material Research, Tohoku University, Sendai, Japan
3. Hochfeld-Magnetlabor Dresden (HLD-EMFL) and Würzburg-Dresden Cluster of Excellence ct.qmat, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
4. Department of Physics, University of California, San Diego, CA, USA
5. Department of Physics, Central Washington University, Ellensburg, WA, USA