Significant spin polarization of Co2MnGa Heusler thin films on MgO(100) measured by ultraviolet photoemission spectroscopy
Significant spin polarization of Co2MnGa Heusler thin films on MgO(100) measured by ultraviolet photoemission spectroscopy
复制标题
紫外光电子能谱测量 MgO(100) 上 Co2MnGa Heusler 薄膜的显着自旋极化
DOI:
--
复制
发表时间:
2011
期刊:
影响因子:
--
通讯作者:
M. Jourdan
中科院分区:
文献类型:
--
作者:
Michaela Hahn;G. Schönhense;E. A. Jorge;M. Jourdan
The spin dependent valence band structure of the Heusler compound Co2MnGa grown on MgO(100) is investigated by spin resolved ultraviolet photoemission spectroscopy (SRUPS). Using a vacuum suitcase, epitaxial thin film samples are transferred from a deposition chamber into an SRUPS chamber with a highly efficient spin detector. The transport results only in weak oxidation of the moderately reactive compound Co2MnGa. A spin polarization of 34% is obtained at the Fermi energy. The energy dependence of the spin polarization including a sign change at E−EF=−0.6 eV is in good agreement with theoretical predictions of the bulk properties of the Heusler compound.
影响因子:
3.4
作者:
Cinchetti, M.;Wuestenberg, J.-P.;Aeschlimann, M.
通讯作者:
Aeschlimann, M.
影响因子:
4
作者:
Herbort, Christian;Jorge, Elena Arbelo;Jourdan, Martin
通讯作者:
Jourdan, Martin
影响因子:
3.4
作者:
Wuestenberg, Jan-Peter;Fischer, Johannes;Cinchetti, Mirko
通讯作者:
Cinchetti, Mirko