Abstract
The optical reflectance of Co has been measured in the spectral range . The reflectance is low and decreases monotonically in the region eV, indicating that strong absorption has started at photon energies near or below 0.05 eV. The reflectance has small shoulders at about 3.0, 5.0, and 6.0 eV. Optical functions have been deduced from the reflectance data by the Kramers-Kronig analysis. The curve exhibits a strong structure at eV, similar to the strong peak at eV of of Ni. The absorption coefficient of Co also has a prominent peak at eV and smaller ones at 3.2 and 5.0 eV. These optical data will be used in a separate paper in conjunction with photoemission results to deduce the optical density of states of Co.
- Received 19 October 1967
DOI:https://doi.org/10.1103/PhysRev.167.670
©1968 American Physical Society