77SE-NMR study under pressure on 12%-s doped FeSe

Takanori Kuwayama, Kohei Matsuura, Yuta Mizukami, Shigeru Kasahara, Yuji Matsuda, Takasada Shibauchi, Yoshiya Uwatoko, Naoki Fujiwara

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The 12%-S doped FeSe system has a high Tc of 30 K at a pressure of 3.0 GPa. We have successfully investigated its microscopic properties for the first time via77Se-NMR measurements under pressure. The antiferromagnetic (AFM) fluctuations at the optimal pressure (~3 GPa) exhibited unexpected suppression compared with the AFM fluctuations at ambient pressure, even though the optimal pressure is close to the phase boundary of the AFM phase induced at the high-pressure region. In addition, we revealed that the SC phase at an applied field of 6.02 T exhibited a remarkable double-dome structure in the pressure–temperature phase diagram, unlike the SC phase at zero field.

Original languageEnglish
Article number033703
Journaljournal of the physical society of japan
Volume88
Issue number3
DOIs
Publication statusPublished - 2019
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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