High efficiency electron spin polarization analyzer based on exchange scattering at FeW(001).
作者信息
Winkelmann A, Hartung D, Engelhard H, Chiang C-T, Kirschner J
机构信息
Max-Planck-Institut fur Mikrostrukturphysik, Weinberg 2, D-06120 Halle(Saale), Germany.
出版信息
Rev Sci Instrum. 2008 Aug;79(8):083303. doi: 10.1063/1.2949877.
PMID:19044342
Abstract
We report on a compact electron spin analyzer based on exchange scattering from a magnetic surface. The heart of the detector is an Fe(001) thin film grown on W(001) with chemisorbed oxygen in the p(1 x 1) structure. The device is mounted at the exit of an energy dispersive analyzer and works at a scattering energy of about 13.5 eV. Its figure of merit is 2 x 10(-3), combined with an excellent stability of more than 2 weeks in UHV.
摘要
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