@article{5dd84b65975d47f5aa752364512cfe56,
title = "Detecting halfmetallic electronic structures of spintronic materials in a magnetic field",
abstract = "Band-gap engineering is one of the fundamental techniques in semiconductor technology and also applicable in next generation spintronics using the spin degree of freedom. To fully utilize the spintronic materials, it is essential to optimize the spin-dependent electronic structures in the operando conditions by applying magnetic and/or electric fields. Here we present an advanced spectroscopic technique to probe the spin-polarized electronic structures by using magnetic circular dichroism (MCD) in resonant inelastic soft X-ray scattering (RIXS) under an external magnetic field. Thanks to the spin-selective dipole-allowed transitions in RIXS-MCD, we have successfully demonstrated the direct evidence of the perfectly spin-polarized electronic structures for the prototypical halfmetallic Heusller alloy Co 2MnSi. RIXS-MCD is a promising tool to probe the spin-dependent carriers and band-gap induced in the buried magnetic layers in an element specific way under the operando conditions.",
author = "H. Fujiwara and Umetsu, {R. Y.} and F. Kuroda and J. Miyawaki and T. Kashiuchi and K. Nishimoto and K. Nagai and A. Sekiyama and A. Irizawa and Y. Takeda and Y. Saitoh and T. Oguchi and Y. Harada and S. Suga",
note = "Funding Information: This work is financially supported by Grant-in-Aid for Scientific Research (JP18K03512 and JP20K20900) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. The measurements were performed under the approval of BL07LSU, BL23SU and BL19LXU at SPring-8 (Proposals No. 2016A3832(JPMXP09A16AE0012), No. 2017A7530, No. 2017B7552, No. 2018B7581, No. 20180026, No. 2019A7599, No. 2020A7475 and No. 2021A7497). We are grateful for S. Hamamoto, T. Kiss, S. Imada, A. Higashiya, Y. Yamasaki, K. Tamasaku, M. Yabashi, and T. Ishikawa for supporting the photoemission experiments, and sincerely thank T. Sugawara and Y. Murakami in Tohoku University for their help in making the single crystal and performing the EPMA analysis. We also acknowledge H. Fujii for fruitful discussions regarding the theoretical simulations. Publisher Copyright: {\textcopyright} 2021, The Author(s).",
year = "2021",
month = dec,
doi = "10.1038/s41598-021-97992-z",
language = "English",
volume = "11",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",
}