@article{d69f0a05a19c4773af666a089238bd78,
title = "Correlation between ferromagnetism and dopant 3 d metal-oxygen hybridized state lying at the bottom of conduction band in ZnO-based diluted magnetic semiconductor system",
abstract = "We systematically investigate the unoccupied electronic states, crystal structure, and magnetism of V- and Mn-doped ZnO nanocrystals (NCs). Post-annealing treatment at 300 °C converts diamagnetic V 5 + into magnetic high-spin V 3 + ions, which leads to room-temperature ferromagnetism for the V-doped NCs. In contrast, ferromagnetism does not occur for the Mn-doped NCs. Oxygen 1 s x-ray absorption spectroscopy reveals that the unoccupied metal-oxygen hybridized state lies near the bottom of the conduction band for the V-doped NCs but lies far above it for the Mn-doped NCs. Therefore, the ferromagnetism in a ZnO-based diluted magnetic semiconductor system can be understood within the framework of the n-type carrier-mediated ferromagnetism model. ",
author = "Takuto Tsukahara and Satoshi An and Sho Otsuru and Yasuhisa Tezuka and Shunsuke Nozawa and Junichi Adachi and Kenta Akashi and Yuji Inagaki and Tatsuya Kawae and Hirofumi Ishii and Liao, {Yen Fa} and Tetsuya Kida and Satoshi Suehiro and Masashi Nantoh and Koji Ishibashi and Yoichi Ishiwata",
note = "Funding Information: The authors would like to thank K. Mase at KEK for his assistance with the XAS experiment (Proposal No. 2017G569). The XRD experiment at SPring-8 was performed with the approval of JASRI (Proposal Nos. 2019A4254 and 2019B4129). This work was supported by JSPS KAKENHI Grant No. JP17K05501. Transmission electron microscopy analyses were conducted with a JEM-1400 microscope spectrometer at the Analytical Research Center for Experimental Sciences, Saga University. Funding Information: The XRD experiment at SPring-8 was performed with the approval of JASRI (Proposal Nos. 2019A4254 and 2019B4129). This work was supported by JSPS KAKENHI Grant No. JP17K05501. Transmission electron microscopy analyses were conducted with a JEM-1400 microscope spectrometer at the Analytical Research Center for Experimental Sciences, Saga University. Publisher Copyright: {\textcopyright} 2021 Author(s).",
year = "2021",
month = dec,
day = "28",
doi = "10.1063/5.0066697",
language = "English",
volume = "130",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "24",
}