title: Ultrahigh-resolution spin-resolved photoemission spectrometer with a mini Mott detector.
abstract: We have developed an ultrahigh-resolution spin-resolved photoemission spectrometer with a highly efficient mini Mott detector and an intense xenon plasma discharge lamp. The spectrometer achieves the energy resolutions of 0.9 and 8 meV for non-spin-resolved and spin-resolved modes, respectively. Three-dimensional spin-polarization is determined by using a 90° electron deflector situated before the Mott detector. The performance of spectrometer is demonstrated by observation of a clear Rashba splitting of the Bi(111) surface states.
authors.affiliation: WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan. s.souma@arpes.phys.tohoku.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Souma
authors.forename: A
authors.initials: A
authors.lastname: Takayama
authors.forename: K
authors.initials: K
authors.lastname: Sugawara
authors.forename: T
authors.initials: T
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Takahashi