Anderson's impurity-model analysis on CeO1-xFxBiS2. (18th March 2015)

• Record Type: Journal Article
• Authors: Sugimoto, Takuya; Joseph, Boby; Paris, Eugenio; Iadecola, Antonella; Demura, Satoshi; Mizuguchi, Yoshikazu; Takano, Yoshihiko; Mizokawa, Takashi; Saini, Naurang L
• Is Part Of: Journal of physics. Number 592 (2015)
• Page Start: 012073
• Publication Date: 2015-03-18
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/592/1/012073
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We have investigated the impact of F-doing on CeO1- x F x BiS2 in terms of the electronic-structural parameters of Anderson's impurity-model analysis. It was recently reported using Ce L 3 -edge x-ray absorption spectroscopy (XAS) that CeOBiS2 falls in the Ce valence fluctuation regime and the F-doping drives the system into the Kondo regime. The Ce L 3 - edge XAS spectra with the various F-doping levels can be reproduced by adjusting the transfer integral in the Anderson's impurity model. The present analysis indicates that the F-doping to the system corresponds to the decrease of the Ce-Bi transfer integral.