Recently, FeSe1-xSx systems have received much attention because of the unique pressure-temperature phase diagram. We performed77Se-NMR measurements on a single crystal of FeSe0.88S0.12 to investigate its microscopic properties. The shift of77Se spectra exhibits anomalous enhancement at 1.0 GPa, suggesting a topological change in the Fermi surfaces, the so-called Lifshitz transition, occurs at 1.0 GPa. The magnetic fluctuation simultaneously changes its properties, which implies a change in the dominant nesting vector.
ASJC Scopus subject areas
- Materials Science (miscellaneous)
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry