Infrared and optical spectroscopy of alpha and gamma-phase Ce
J. W. van der Eb, A. B. Kuz'menko, D. van der Marel
Abstract
We determined the optical properties of alpha- and gamma-phase Ce in the photon energy range from 60 meV to 2.5 eV using ellipsometry and grazing incidence reflectometry. We observe significant changes of the optical conductivity, the dynamical scattering rate, and the effective mass between alpha- and gamma-cerium. The alpha-phase is characterized by Fermi-liquid frequency dependent scattering rate, and an effective mass of about 20 me on an energy scale of about 0.2 eV. In gamma-Ce the charge carriers have a large scattering rate in the far infrared, and a carrier mass characteristic of 5d band electrons. In addition we observe a prominent absorption feature in alpha-Ce, which is absent in gamma-Ce, indicating significant differences of the electronic structure between the two phases.
Create a lesson
Related papers
A new approach to the Kondo effect: sophomore's dream function and Lee-Yang zeros
V. Yu. Irkhin
Temperature evolution of spin dynamics in extended Kitaev models within an Abrikosov fermion theory beyond mean field
Daiki Sasamoto, Joji Nasu
Interplay of disorder and spin liquid physics in the triangular-lattice antiferromagnet YbZn2GaO5
Hafsa Zeroual, Shams Sohel Islam, Toni Shiroka et al.
X-ray absorption spectroscopic studies of oxygen-deficient double perovskite oxide NdBaCo2O5+δ (δ 0.65)
Himanshu Pant, S. Khalid, R. Bindu
Odd-Parity Crystalline Electric Field and Multipoles in Icosahedral Quasicrystal and Approximant: Magnetic Toroidal and Electric Dipoles in Ce-Based Systems
Shinji Watanabe, Syunta Furuya, Mitsuaki Kawamura
Real-Time Relaxation Dynamics of Dark Excitons in Mirror-Symmetric Monolayers
Rishabh Saraswat, Mantasha Ansari, Rekha Verma et al.