Indexed by: Journal paper

First Author: Z-H Liu

Correspondence Author: S-C Wang

Co-author: P Richard,N Xu,G Xu,Y Li,X-C Fang,L-L Jia,G-F Chen,D-M Wang,J-B He,T Qian,J-P Hu,H Ding

Journal: Physical review letters

Included Journals: SCI

Discipline: Science

First-Level Discipline: Physics

Document Type: J

Volume: 109

Issue: 3

Page Number: 037003

ISSN No.: 0031-9007

Date of Publication: 2012-07-20

Impact Factor: 7.943

Abstract: We report a comprehensive angle-resolved photoemission spectroscopy study of the tridimensional electronic bands in the recently discovered Fe selenide superconductor (Tl, Rb) y Fe 2− x Se 2 (T c= 32 K). We determined the orbital characters and the k z dependence of the low energy electronic structure by tuning the polarization and the energy of the incident photons. We observed a small 3D electron Fermi surface pocket near the Brillouin zone center and a 2D like electron Fermi surface pocket near the zone boundary.