The Fermi surface of Bi2Sr2CaCu2O8(4)
时间:2025-02-27
时间:2025-02-27
We study the Fermi surface of Bi2Sr2CaCu2O8 (Bi2212) using angle resolved photoemission (ARPES) with a momentum resolution of ~ 0.01 of the Brillouin zone. We show that, contrary to recent suggestions, the Fermi surface is a large hole barrel centered at (
FIG.3.EDCsforcutsparalleltoMY(seeinset)measuredatT=40Kfor33eVphotonenergy.Notechangeinbindingenergyaxisscaletoemphasizequasiparticledispersion.SamesampleandorientationasFig.2.Theblacksquaresindicatethemainbandcrossings,andtheblackandwhitearrowstheumklappbandcrossings.ThezoneinsetisasinFig.2a,withdashedsegmentsontheFermicontoursindicatingmatrixelementsuppression,andtheverticallinesrepresentingthecuts.