Published March 2019 | Version v1
Journal article Metadata-only

77Se-NMR study under pressure on 12%-S doped FeSe

Creators

  • 1. Kyoto University, Graduate School of Human and Environmental Studies, Kyoto (Japan)
  • 2. Tokyo University, Graduate School of Frontier Sciences, Kashiwa, Chiba (Japan)
  • 3. Kyoto University, Graduate School of Science, Kyoto (Japan)
  • 4. Tokyo University, Institute for Solid State Physics, Kashiwa, Chiba (Japan)

Description

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 via 77Se-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. (author)

Availability note (English)

Available from https://doi.org/10.7566/JPSJ.88.033703

Additional details

Identifiers

DOI
10.7566/JPSJ.88.033703;

Publishing Information

Journal Title
Journal of the Physical Society of Japan (Online)
Journal Volume
88
Journal Issue
3
Journal Page Range
p. 033703.1-033703.4
ISSN
1347-4073

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
50049110
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; CRYSTAL DOPING; IRON SELENIDES; MHZ RANGE 01-100; NUCLEAR MAGNETIC RESONANCE; PHASE DIAGRAMS; PHOTOELECTRON SPECTROSCOPY; PRESSURE RANGE GIGA PA; SELENIUM 77; SPIN ECHO; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TRANSITION TEMPERATURE
Descriptors DEC
CHALCOGENIDES; DIAGRAMS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTRON SPECTROSCOPY; EVEN-ODD NUCLEI; FREQUENCY RANGE; INFORMATION; INTERMEDIATE MASS NUCLEI; IRON COMPOUNDS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MAGNETIC RESONANCE; MAGNETISM; MHZ RANGE; NUCLEI; PHYSICAL PROPERTIES; PRESSURE RANGE; RADIOISOTOPES; RESONANCE; SECONDS LIVING RADIOISOTOPES; SELENIDES; SELENIUM COMPOUNDS; SELENIUM ISOTOPES; SPECTROSCOPY; STABLE ISOTOPES; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
25 refs., 5 figs.