Optical properties of itinerant UGa3: Ellipsometric measurements and first-principles theory
Abstract
The optical properties of the intermetallic compound UGa3 have been determined by means of ellipsometric measurements. To cover the range from 0.7 to 9.5 eV a laboratory ellipsometer and a synchrotron ellipsometer have been used. The experimental results are compared to a computation of the optical properties from a first-principles band-structure calculation on the basis of local spin-density functional theory. The rather good agreement between the calculated and experimental spectra corroborates the itinerant character of the 5f electrons in UGa3.
- Publication:
-
Physical Review B
- Pub Date:
- March 2000
- DOI:
- 10.1103/PhysRevB.61.7415
- Bibcode:
- 2000PhRvB..61.7415S
- Keywords:
-
- 78.20.-e;
- 71.20.-b;
- 71.28.+d;
- Optical properties of bulk materials and thin films;
- Electron density of states and band structure of crystalline solids;
- Narrow-band systems;
- intermediate-valence solids