TY - JOUR
T1 - 77SE-NMR study under pressure on 12%-s doped FeSe
AU - Kuwayama, Takanori
AU - Matsuura, Kohei
AU - Mizukami, Yuta
AU - Kasahara, Shigeru
AU - Matsuda, Yuji
AU - Shibauchi, Takasada
AU - Uwatoko, Yoshiya
AU - Fujiwara, Naoki
N1 - Funding Information:
Acknowledgments The NMR work is supported by JSPS KAKENHI Grant Number JP18H01181 and a grant from Mitsubishi Foundation. We thank H. Kontani and P. Toulemonde for discussion.
Publisher Copyright:
© 2019 The Physical Society of Japan
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
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U2 - 10.7566/JPSJ.88.033703
DO - 10.7566/JPSJ.88.033703
M3 - Article
AN - SCOPUS:85066742927
SN - 0031-9015
VL - 88
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 3
M1 - 033703
ER -