@article{ffe8d7ac48f44e5a8223aa7cdfa32db0,
title = "Negative spin polarization at the Fermi level in Fe 4N epitaxial films by spin-resolved photoelectron spectroscopy",
abstract = "We evaluated the valence band structures of 10-nm-thick ferromagnetic Fe 4N epitaxial films on SrTiO 3(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.",
author = "Keita Ito and Kazuaki Okamoto and Kazunori Harada and Tatsunori Sanai and Kaoru Toko and Shigenori Ueda and Yoji Imai and Taichi Okuda and Koji Miyamoto and Akio Kimura and Takashi Suemasu",
note = "Funding Information: This work was supported in part by the NanoProcessing Partnership Platform (NPPP) at AIST, Tsukuba, Japan. The HX-PES measurements were performed at Synchrotron X-ray Station at SPring-8, NIMS (Proposal No. 2011B4804). The SRPES measurements were carried out at HiSOR, Hiroshima University, under collaborative proposal (No. 11-B-39). K. Ito and T. Suemasu also thank Dr. N. Ota and Professor K. Asakawa of the Tsukuba Nano-Tech Human Resource Development Program at the University of Tsukuba for useful discussions.",
year = "2012",
month = jul,
day = "1",
doi = "10.1063/1.4733327",
language = "English",
volume = "112",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "1",
}