Publications

High-field superconductivity on iron chalcogenide FeSe

Shi, A. and Kitagawa, S. and Ishida, K. and Böhmer, A.E. and Meingast, C. and Wolf, T.

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume: 87 Pages:
DOI: 10.7566/JPSJ.87.065002
Published: 2018

Abstract
We have performed ac-susceptibility and77Se-NMR measurements on single-crystal FeSe in the field range from 12.5 to 14.75T below 1.6K in order to investigate the superconducting properties of the B phase. Our results show that although superconductivity persists beyond the A–B transition line (H+), the broadening of the 77Se-NMR linewidth arising from the superconducting diamagnetic effect decreases at around H+, suggesting that superconducting character is changed at H+. © 2018 The Physical Society of Japan.

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