Pressure-induced isostructural phase transition and charge transfer in superconducting FeSe

• Published in: Journal of alloys and compounds Vol. 767; no. C; pp. 811 - 819
• Main Authors: Yu, Zhenhai, Xu, Ming, Yan, Zhipeng, Yan, Hao, Zhao, Jinggeng, Patel, Umeshkumar, Brewe, Dale L., Heald, Steve M., Ma, Jingyuan, Guo, Yanfeng, Yang, Ke, Xiao, Zhili, Wang, Lin
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 30.10.2018; Elsevier BV; Elsevier
• Subjects: Anisotropy; Charge transfer; Crystallography; Diffraction; Electronic properties; Electronic structure; Fe-based superconductor; High pressure; Isostructural phase transition; MATERIALS SCIENCE; Phase diagrams; Phase transitions; Spin transition; Superconductivity; Superconductors; Synchrotron radiation; X ray absorption; X ray spectra; X-ray diffraction; X-ray spectroscopy; Fe-based superconductor; Charge transfer; High pressure; Isostructural phase transition
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2018.07.161

We present extensive investigations of the crystallographic phase diagram and electronic properties of the Fe-based superconductor FeSe under extreme conditions (high pressure (HP) and low temperature (LT)) by synchrotron X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). An isostructu...