Abstract
We have made photoemission studies of La 2− x Sr x CuO 4 (LSCO) and found the following: (1) suppression of the chemical potential ( μ) shift for small x indicates a breakdown of the Fermi-liquid picture in the underdoped regime and suggests the opening of a pseudogap; (2) valence band spectra have indeed shown a pseudogap whose magnitude increases with decreasing x, simultaneously the density of states (DOS) at μ diminishes; (3) ARPES measurements have revealed changes from an electron-like Fermi surface in the overdoped regime to a hole-like one in the underdoped regime.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
