Effect of Anisotropic Hybridization in YbAlB4 Probed by Linear Dichroism in Core-Level Hard X-Ray Photoemission Spectroscopy
Effect of Anisotropic Hybridization in YbAlB4 Probed by Linear Dichroism in Core-Level Hard X-Ray Photoemission Spectroscopy
复制标题
DOI：
10.1103/physrevlett.123.036404
复制
发表时间：
2019-07-17
影响因子：
8.6
通讯作者：
Kiss, Takayuki
中科院分区：
文献类型：
--
作者：
Kuga, Kentaro;Kanai, Yuina;Kiss, Takayuki
We have probed the crystalline electric-field ground states of pure vertical bar J = 7/2, J(z) = +/- 5/2 > as well as the anisotropic c-f hybridization in both valence fluctuating systems alpha- and beta-YbAlB4 by linear polarization dependence of angle-resolved core level photoemission spectroscopy. Interestingly, the small but distinct difference between alpha- and beta-YbAlB4 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 alpha-YbAlB4 and a quantum critical state in beta-YbAlB4
