NAKATA YUINA
Department / Course College of Science and Engineering Department of Physical Sciences
Title / Position Assistant Professor
Language English
Publication Date 2019/07
Type Research paper (scientific journal)
Peer Review Yes
Title Effect of Anisotropic Hybridization in YbAlB4 Probed by Linear Dichroism in Core-Level Hard X-Ray Photoemission Spectroscopy.
Contribution Type Joint Work
Journal Physical review letters
Journal Type Another Country
Volume, Issue, Page 123(3),036404
Author and coauthor Kuga Kentaro, Kanai Yuina, Fujiwara Hidenori, Yamagami Kohei, Hamamoto Satoru, Aoyama Yuichi, Sekiyama Akira, Higashiya Atsushi, Kadono Toshiharu, Imada Shin, Yamasaki Atsushi, Tanaka Arata, Tamasaku Kenji, Yabashi Makina, Ishikawa Tetsuya, Nakatsuji Satoru, Kiss Takayuki
Details We have probed the crystalline electric-field ground states of pure |J=7/2,J_{z}=±5/2⟩ as well as the anisotropic c-f hybridization in both valence fluctuating systems α- and β-YbAlB_{4} by linear polarization dependence of angle-resolved core level photoemission spectroscopy. Interestingly, the small but distinct difference between α- and β-YbAlB_{4} was found in the polar angle dependence of linear dichroism, indicating the difference in the anisotropy of c-f hybridization, which may be a key to understanding a heavy Fermi liquid state in α-YbAlB_{4} and a quantum critical state in β-YbAlB_{4}.
DOI 10.1103/PhysRevLett.123.036404
ISSN 1079-7114
PMID 31386467