Optical properties of crystalline tungsten

Date
1975-08-01
Authors
Weaver, J. H.
Olson, C. G.
Lynch, David
Lynch, David
Journal Title
Journal ISSN
Volume Title
Publisher
Source URI
Altmetrics
Authors
Research Projects
Organizational Units
Physics and Astronomy
Organizational Unit
Journal Issue
Series
Abstract

The optical properties of W are presented between 0.15 and 33 eV. The optical absorptivity or reflectivity was measured at near-normal incidence, and the data were Kramers-Kronig analyzed to determine the dielectric functions. Drude parameters were determined at low energy and were used to separate interband and intraband contributions to ε2. Structures in ε2 were apparent at 0.42, 0.97, 1.82, 2.35, 3.42, 5.25, 8.8, 11.3, 16.5, 22.5, and 31.5 eV. These features were discussed in terms of recent calculations of Christensen and Feuerbacher and by analogy to other transtion metals studied. The loss functions were shown to have three volume plasmons (25.3, 15.2, and 10.0 eV) and three surface plasmons (20.8, 14.8, and 9.7 eV). Structure near 31.5 eV was interpreted as due to NVII core transitions.

Description
<p>This article is from <em>Physical Review B</em> 12 (1975): 1293, doi:<a href="http://dx.doi.org/10.1103/PhysRevB.12.1293" target="_blank">10.1103/PhysRevB.12.1293</a>. Posted with permission.</p>
Keywords
Kramers-Kronig, Drude parameters, Ames Laboratory
Citation
Collections