Magnetic properties of novel epitaxial films

Conference · Mon Sep 01 04:00:00 EDT 1986

OSTI ID:6905865

Bader, S D; Moog, E R

The surface magneto-optic Kerr effect (SMOKE) is used to explore the magnetism of ultra-thin Fe Films extending into the monolayer regime. Both bcc ..cap alpha..-Fe and fcc ..gamma..-Fe single-crystalline, multilayer films are prepared on the bulk-terminated (1 x 1) structures of Au(100) and Cu(100), respectively. The characterizations of epitaxy and growth mode are performed using low energy electron diffraction and Auger electron spectroscopy. Monolayer-range Fe/Au(100) is ferromagnetic with a lower Curie temperature than bulk ..cap alpha..-Fe. The controversial ..gamma..-Fe/Cu(100) system exhibits a striking, metastable, surface magnetic phase at temperatures above room temperature, but does not exhibit bulk ferromagnetism.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6905865
• Report Number(s): CONF-861111-18; ON: DE87004744
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
AUGER ELECTRON SPECTROSCOPY
COHERENT SCATTERING
COPPER
DEPOSITION
DIELECTRIC PROPERTIES
DIFFRACTION
ELECTRICAL PROPERTIES
ELECTRON DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
EPITAXY
FILMS
GOLD
IRON
KERR EFFECT
LAYERS
MAGNETIC PROPERTIES
MAGNETO-OPTICAL EFFECTS
METALS
PHYSICAL PROPERTIES
SCATTERING
SPECTROSCOPY
SURFACE COATING
SURFACES
TRANSITION ELEMENTS