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Ultrahigh-resolution spin-resolved photoemission spectrometer with a mini Mott detector

2010; American Institute of Physics; Volume: 81; Issue: 9 Linguagem: Inglês

10.1063/1.3480542

1527-2400

S. Souma, A. Takayama, K. Sugawara, T. Sato, T. Takahashi,

Topological Materials and Phenomena

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.