D. Takegami, D. Kasinathan, K. K. Wolff, S. G. Altendorf, C. F. Chang, K. Hoefer, A. Melendez-Sans, Y. Utsumi, F. Meneghin, T. D. Ha, C. H. Yen, K. Chen, C. Y. Kuo, Y. F. Liao, K. D. Tsuei, R. Morrow, S. Wurmehl, B. Büchner, B. E. Prasad, M. Jansen, A. C. Komarek, P. Hansmann, and L. H. TjengCharge-transfer energy in iridates: A hard x-ray photoelectron spectroscopy study
Physical Review B 102, 045119 (2020).
DOI: 10.1103/PhysRevB.102.045119 20200713

Yuki Utsumi, Debashis Mondal, Jun Fujii, Ivana Vobornik, Shota Nakamura, Dubravka Matković- Čalogović, Shigeo OharaElectronic Structure of Yb(Ni_1−xCo_x)₃Ga₉ Studied by Angle-resolved Photoelectron Spectroscopy
Journal of the Physical Society of Japan 89, 044711 (2020)
DOI: 10.7566/JPSJ.89.044711 20200326

S. Agrestini, C.-Y. Kuo, K. Chen, Y. Utsumi, D. Mikhailova, A. Rogalev, F. Wilhelm, T. Förster, A. Matsumoto, T. Takayama, H. Takagi, M. W. Haverkort, Z. Hu, and L. H. TjengProbing the Jeff= 0 ground state and the Van Vleck paramagnetism of the Ir5+ ions in layered Sr2Co0.5Ir0.5O4
Phys. Rev. B 97, 214436 (2018)
DOI: 10.1103/PhysRevB.97.214436 20180601

Yuki Utsumi, Deepa Kasinathan, Przemysław Swatek, Oleksandr Bednarchuk, Dariusz Kaczorowski, James M. Ablett, and Jean-Pascal RueffBulk electronic structure of non-centrosymmetric EuTGe3 (T= Co, Ni, Rh, Ir) studied by hard x-ray photoelectron spectroscopy
PHYSICAL REVIEW B 97, 115155 (2018)
DOI: 10.1103/PhysRevB.97.115155 20180326