TY - JOUR AU - Kuwayama, T. AU - Matsuura, K. AU - Mizukami, Y. AU - Kasahara, S. AU - Matsuda, Y. AU - Shibauchi, T. AU - Uwatoko, Y. AU - Fujiwara, N. PY - 2019/06/18 Y2 - 2024/03/29 TI - Pressure-induced Lifshitz transition in FeSe$_{0.88}$S$_{0.12}$ probed via $^{77}$Se-NMR JF - Papers in Physics JA - Pap. Phys. VL - 11 IS - SE - Articles DO - 10.4279/pip.110003 UR - https://www.papersinphysics.org/papersinphysics/article/view/477 SP - 110003 AB - <p>Recently, FeSe$_{1-x}$S$_x$ systems have received much attention because of the unique pressure-temperature phase diagram. We performed $^{77}$Se-NMR measurements on a single crystal of FeSe$_{0.88}$S$_{0.12}$ to investigate its microscopic properties. The shift of $^{77}$Se spectra exhibits anomalous enhancement at $1.0~\mathrm{GPa}$, suggesting a topological change in the Fermi surfaces, so-called Lifshitz transition, occurs at $1.0~\mathrm{GPa}$. The magnetic fluctuation simultaneously changes its properties, which implies a change in the dominant nesting vector.</p><p><strong>Edited by:</strong> A. Goñi, A. Cantarero, J. S. Reparaz</p> ER -