Reflectance spectra and dielectric functions for Ag in the region of interband transitions

Journal Article · Fri Apr 15 04:00:00 EST 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.27.4654· OSTI ID:6055707

Leveque, G; Olson, C G; Lynch, D W

New measurements have been made of the reflectances of single crystals of Ag and of Ag films in the (3.5--30)-eV range. The data were analyzed with the Kramers-Kronig method and the resultant dielectric functions were compared with those in the literature and with recent calculations. We find all structures previously seen, and a new weak peak at 11.5 eV. Our magnitudes for epsilon/sub 2/ are in considerably better agreement with those of the calculated spectra than are those in the literature. Second-derivative spectra of the absorption coefficient have been calculated and compared with previously measured thermotransmission spectra, showing the latter to arise primarily by temperature-dependent broadening.

• Research Organization: Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6055707
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:8; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
BREMSSTRAHLUNG
CORRELATIONS
CRYSTALS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
FILMS
KRAMERS-KRONIG CORRELATION
METALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
REFLECTIVITY
SAMPLE PREPARATION
SILVER
SURFACE PROPERTIES
SURFACE TREATMENTS
SYNCHROTRON RADIATION
TRANSITION ELEMENTS