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  • Title: A new spin-polarized photoemission spectrometer with very high efficiency and energy resolution.
    Author: Okuda T, Takeichi Y, Maeda Y, Harasawa A, Matsuda I, Kinoshita T, Kakizaki A.
    Journal: Rev Sci Instrum; 2008 Dec; 79(12):123117. PubMed ID: 19123555.
    Abstract:
    A new spin- and angle-resolved photoemission spectrometer was developed adopting the very-low-energy-electron-diffraction (VLEED)-type spin polarimeter. The Fe(001)p(1x1)-O film grown on MgO(001) crystal for the VLEED target yields significantly high spin-resolving power, the effective Sherman function of 0.40+/-0.02, with long lifetime and stability compared to the conventional Fe(001) target. Under the favor of high resolving power, approximately 100 times higher efficiency than that of conventional Mott-type spin polarimeter, the figure of merit of 1.9+/-0.2x10(-2) was achieved. Owing to this high efficiency, high-energy resolution can be realized with this new spin-polarized photoemission spectrometer. The simplified ways of target preparation and revitalization make the VLEED spin polarimeter much more convenient and feasible for the spin-polarized photoemission spectroscopy.
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