title: Fermi surface, surface states, and surface reconstruction in Sr2RuO4
abstract: The electronic structure of Sr2RuO4 is investigated by high angular resolution ARPES at several incident photon energies. We address the controversial issues of the Fermi surface (FS) topology and the van Hove singularity at the M point, showing that a surface state and the replica of the primary FS due to sqrt[2]xsqrt[2] surface reconstruction are responsible for previous conflicting interpretations. The FS thus determined by ARPES is consistent with the de Haas-van Alphen results, and it provides additional information on the detailed shape of the alpha, beta, and gamma sheets.
authors: Department of Physics, Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305, USA.
authors: A
authors: Damascelli
authors: DH
authors: Lu
authors: KM
authors: Shen
authors: NP
authors: Armitage
authors: F
authors: Ronning
authors: DL
authors: Feng
authors: C
authors: Kim
authors: ZX
authors: Shen
authors: T
authors: Kimura
authors: Y
authors: Tokura
authors: ZQ
authors: Mao
authors: Y
authors: Maeno