Negative spin polarization at the Fermi level in Fe4N epitaxial films by spin-resolved photoelectron spectroscopy
- Ito Keita
- Okamoto Kazuaki
- Harada Kazunori
- Sanai Tatsunori
- Toko Kaoru
- Ueda Shigenori
- Imai Yoji
- Okuda Taichi
- Miyamoto Koji
- Kimura Akio
- Suemasu Takashi
- 都甲 薫
- 末益 崇
Publication date
July 2012
DOI Publisher
AIP Publishing ISSN
0021-8979 Journal
Journal of Applied Physics Citation count (estimate)
17Abstract
We evaluated the valence band structures of 10-nm-thick ferromagnetic Fe4N epitaxial films on SrTiO3(001) substrates at room temperature using spin-resolved photoelectron spectroscopy. Negative spin polarization is confirmed at the Fermi level. The experimentally obtained photoelectron spectra are well explained by first-principles calculations based on the psuedopotential method
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