Surface phonons and structure of epitaxial nickel layers on Cu(001)
Journal Article
·
· Physical Review, B: Condensed Matter; (USA)
- Department of Physics and Laboratory for Surface Studies, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201 (USA)
- Department of Physics, Indiana University, Bloomington, Indiana 47405 (USA)
We compare measured and calculated electron-energy-loss phonon spectra of ultrathin films of Ni grown on Cu(001) to determine the interlayer spacings of the Ni layers. We find a small ({similar to}4.6%) expansion in the surface volume of the Ni film at two and four monolayers. Data of Ni film modes along the {bar {Gamma}} {ital {bar M}} and {bar {Gamma}} {ital {bar X}} directions are measured for different thicknesses of the Ni film, and comparison between measured and calculated phonon dispersions of the film modes show considerable relaxation in the intralayer force constant of the overlayer film.
- DOE Contract Number:
- FG02-84ER45076
- OSTI ID:
- 5736492
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:8; ISSN PRBMD; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
Similar Records
Vibrational properties of epitaxial films on metals. I. fcc Cu on the Ni(001) surface
Vibrational properties of epitaxial films on metals. II. fcc Ni on the Cu(001) surface
Characterization of surface phonons on Cu(001) and Ag(001): First-principles phonon calculations with experimental and theoretical studies of high-resolution electron-energy-loss spectra
Journal Article
·
Tue Mar 14 23:00:00 EST 1989
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6409390
Vibrational properties of epitaxial films on metals. II. fcc Ni on the Cu(001) surface
Journal Article
·
Tue Mar 14 23:00:00 EST 1989
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6184377
Characterization of surface phonons on Cu(001) and Ag(001): First-principles phonon calculations with experimental and theoretical studies of high-resolution electron-energy-loss spectra
Journal Article
·
Thu Nov 14 23:00:00 EST 1991
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:5098407