Detection of spin-resolved electronic structures from a buried ferromagnetic layer utilizing forward Mott scattering

作者：Ueda S^*; Mizuguchi M; Kojima T; Ishimaru S; Tsujikawa M; Shirai M; Takanashi K

来源：Applied Physics Letters, 2014, 104(13): 132402.

DOI：10.1063/1.4868248

We report ultrahigh-resolution spin-resolved hard X-ray photoemission (HAXPES) for a buried FeNi alloy film. By utilizing the forward Mott scattering in a Au layer on FeNi, our spin-resolved HAXPES method does not require a standard spin detector and allows us to use the multi-channel electron detection system for the high-efficient electron detection as used in conventional photoemission spectroscopy. A combination of the forward Mott scattering and multi-channel detection leads us to measure a clear spin polarization as well as spin-resolved majority and minority states in the Fe 2p core-level spectra without using the standard spin detector. This method enables us to measure spin-resolved core-level spectra for buried ferromagnetic materials.

• 出版日期2014-3-31