@article{81d74f1466b84b8fb0d6da92181c3ad7,
title = "Valence transition of EuRh2Si2",
abstract = "We have studied 151Eu M{\"o}ssbauer effects on EuRh2Si2 at a high pressure of 1.0 GPa as well as at ambient pressure. The compound shows a temperature-induced valence transition from the Eu2+ state to the nearly Eu3+ state with decreasing temperature at P ≥ 1.0 GPa. The synchrotron-radiation-based M{\"o}ssbauer spectroscopy is applied to the measurements under a high pressure. The Eu2+ ratio abruptly decreases at around 30 K reflecting the temperature-induced valence transition. We also observed a valence transition due to magnetic field by M{\"o}ssbauer spectroscopy for the first time. It was found that a considerable amount (∼45%) of Eu atoms do not participate in the valence transition. We discuss the origin of these Eu atoms by calculating the magnetization based on the M{\"o}ssbauer spectroscopy data.",
author = "Akihiro Mitsuda and Hirofumi Wada and Ryo Masuda and Shinji Kitao and Makoto Seto and Yoshitaka Yoda and Hisao Kobayashi",
note = "Funding Information: Acknowledgements The authors are thankful to Suguru Hamano for his technical help in sample preparation and to Yui Sakaguchi for her help in applying pressure at low temperatures. M{\"o}ssbauer measurement at a high pressure was performed at the BL09XU beamlines of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Power User Priority Program Proposal No. 2013B0086). M{\"o}ssbauer measurement at ambient pressure was performed at the Institute for Integrated Radiation and Nuclear Science, Kyoto University. This work was partly supported by Grants-in-Aid for Scientific Research on the Innovative Area “Heavy Electrons” (Grant No. 23102720) from the Ministry of Education, Culture, Sports, Science and Technology, and by Grants-in-Aid for Scientific Research (C) (Grant No. 23540415) from the Japan Society for the Promotion of Science. Publisher Copyright: {\textcopyright}2020 The Physical Society of Japan",
year = "2020",
month = sep,
doi = "10.7566/JPSJ.89.104703",
language = "English",
volume = "89",
journal = "journal of the physical society of japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "10",
}