skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Polar Kerr-effect observation of perpendicular surface anisotropy for ultrathin fcc Fe grown on Cu(100)

Journal Article · · Phys. Rev. Lett.; (United States)

The predicted perpendicular surface anisotropy is observed for ferromagnetic fcc Fe/Cu(100) via in situ, polar Kerr-effect measurements. Square hysteresis loops are obtained for films 1.5 to 5.7 monolayers thick for 100-K growth. The region of stability of the perpendicularly magnetized state as a function of growth temperature and film thickness is delineated. Combined longitudinal and polar Kerr-effect measurements show that the anisotropy reverts to being in plane for films thicker than approx.6 monolayers.

Research Organization:
Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
OSTI ID:
5313426
Journal Information:
Phys. Rev. Lett.; (United States), Vol. 60:23
Country of Publication:
United States
Language:
English