TY - JOUR
T1 - High-resolution angle-resolved photoemission study of CeSb and USb
AU - Takahashi, T.
AU - Kumigashira, H.
AU - Ito, T.
AU - Ashihara, A.
AU - Kim, H. D.
AU - Aoki, H.
AU - Ochiai, A.
AU - Suzuki, T.
N1 - Funding Information:
The authors are very grateful to H. Yamagami for his useful discussion. HK thanks the Japan Society for the Promotion of Science for financial support. This work was supported by grants from the REIMEI Research Resources of Japan Atomic Energy Research Institute and the Ministry of Education, Science and Culture of Japan.
PY - 1998/5
Y1 - 1998/5
N2 - High-resolution angle-resolved photoemission spectroscopy (HR-ARPES) has been performed on isostructural CeSb and USb to study the electronic structure near the Fermi level (EF). In CeSb, we observed the hole and electron pockets at the Brillouin-zone (BZ) center and boundary, respectively, as well as the systematic change of the volume upon the temperature-dependent magnetic phase transition (TN = 16 K). The experimental result suggests that the p-f mixing plays an essential role in characterizing the magnetic property of semimetallic CeSb. In USb, on the other hand, we found a large electron pocket at the BZ center consisting of U 6d states and two almost dispersionless U 5f bands just below EF. This illustrates a clear difference in the electronic structure between Ce and U monopnictides as well as the character between 4f and 5f electrons.
AB - High-resolution angle-resolved photoemission spectroscopy (HR-ARPES) has been performed on isostructural CeSb and USb to study the electronic structure near the Fermi level (EF). In CeSb, we observed the hole and electron pockets at the Brillouin-zone (BZ) center and boundary, respectively, as well as the systematic change of the volume upon the temperature-dependent magnetic phase transition (TN = 16 K). The experimental result suggests that the p-f mixing plays an essential role in characterizing the magnetic property of semimetallic CeSb. In USb, on the other hand, we found a large electron pocket at the BZ center consisting of U 6d states and two almost dispersionless U 5f bands just below EF. This illustrates a clear difference in the electronic structure between Ce and U monopnictides as well as the character between 4f and 5f electrons.
KW - Angle-resolved photoemission
KW - Ce and U compounds
KW - Electronic structure
KW - Fermi surface
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U2 - 10.1016/s0368-2048(98)00102-9
DO - 10.1016/s0368-2048(98)00102-9
M3 - Article
AN - SCOPUS:0041782422
SN - 0368-2048
VL - 92
SP - 65
EP - 69
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
IS - 1-3
ER -