High resolution electron energy loss studies of surface vibrations

Technical Report · Fri Jun 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/6901277· OSTI ID:6901277

Kesmodel, L L

New experimental investigations of surface vibrational properties of materials with high-resolution electron energy loss spectroscopy (EELS) are reported. This document summarizes recent progress on surface phonon dispersion measurements on copper (100), copper (111), aluminum (100) surfaces and ultrathin epitaxial films of nickel and cobalt on copper (100). Measurements on copper and aluminum surfaces show modest changes in surface force constants compared with bulk values and are consistent with first principles lattice dynamics calculations. Measurements on the ultrathin magnetic film systems have revealed new modes associated with vibrations localized in the film.

• Research Organization: Indiana Univ., Bloomington, IN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG02-84ER45147
• OSTI ID: 6901277
• Report Number(s): DOE/ER/45147-5; ON: DE90013803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
ALUMINIUM
COBALT
COPPER
DOCUMENT TYPES
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY-LOSS SPECTROSCOPY
LATTICE VIBRATIONS
METALS
NICKEL
PHONONS
PROGRESS REPORT
QUASI PARTICLES
SPECTROSCOPY
TRANSITION ELEMENTS