TY - JOUR
T1 - Core-level photoelectron spectroscopy study of UTe2
AU - Fujimori, Shin Ichi
AU - Kawasaki, Ikuto
AU - Takeda, Yukiharu
AU - Yamagami, Hiroshi
AU - Nakamura, Ai
AU - Homma, Yoshiya
AU - Aoki, Dai
N1 - Funding Information:
Acknowledgment The authors thank A. B. Shick and W. E. Pickett for stimulating discussion. The experiment was performed under Proposal No. 2019A3811 at SPring-8 BL23SU. The present work was financially supported by JSPS KAKENHI Grant Numbers JP15H05882, JP15H05884, JP15H05745, JP15K21732, JP16H01084, JP16H04006, JP18K03553, and JP19H00646.
Publisher Copyright:
© 2021 The Physical Society of Japan
PY - 2021/1/15
Y1 - 2021/1/15
N2 - The valence state of UTe2 was studied by core-level photoelectron spectroscopy. The main peak position of the U 4 f core-level spectrum of UTe2 coincides with that of UB2, which is an itinerant compound with a nearly 5 f 3 configuration. However, the main peak of UTe2 is broader than that of UB2, and satellite structures are observed in the higher binding energy side of the main peak, which are characteristics of mixed-valence uranium compounds. These results suggest that the U 5 f state in UTe2 is in a mixed valence state with a dominant contribution from the itinerant 5 f 3 configuration.
AB - The valence state of UTe2 was studied by core-level photoelectron spectroscopy. The main peak position of the U 4 f core-level spectrum of UTe2 coincides with that of UB2, which is an itinerant compound with a nearly 5 f 3 configuration. However, the main peak of UTe2 is broader than that of UB2, and satellite structures are observed in the higher binding energy side of the main peak, which are characteristics of mixed-valence uranium compounds. These results suggest that the U 5 f state in UTe2 is in a mixed valence state with a dominant contribution from the itinerant 5 f 3 configuration.
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U2 - 10.7566/JPSJ.90.015002
DO - 10.7566/JPSJ.90.015002
M3 - Article
AN - SCOPUS:85098665505
SN - 0031-9015
VL - 90
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 1
M1 - 015002
ER -