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

Souma, S.; Takayama, A.; Sugawara, K.; Sato, T.; Takahashi, T.
September 2010
Review of Scientific Instruments;Sep2010, Vol. 81 Issue 9, p095101
Academic Journal
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.


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