Published May 1998
| Version v1
Journal article
Magnetic anisotropy of epitaxial Fe films grown on curved W(001) with a graded step density
- 1. Department of Physics, University of California at Berkeley, Berkeley, California 94720 (United States)
- 2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Description
Ultrathin Fe films were grown epitaxially onto a stepped W(001) substrate, polished with a curvature to provide a continuously variable step density, with the steps parallel to the [100] crystalline axis. The steps induce an in-plane uniaxial magnetic anisotropy with easy axis perpendicular to the step edges. We found that this step-induced magnetic anisotropy does not enhance the Curie temperature of the Fe film. The strength of the anisotropy varies quadratically with step density, but does not decay with 1/d dependence expected for a surface-type anisotropy. We suggest that strain at the step edges might underlie the result. copyright 1998 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter
- Journal Volume
- 57
- Journal Issue
- 20
- Journal Page Range
- p. R12713-R12716
- ISSN
- 0163-1829
- CODEN
- PRBMDO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29041209
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; CURIE POINT; DENSITY; FERROMAGNETIC MATERIALS; IRON; MAGNETIC PROPERTIES; STRAINS; THIN FILMS; TUNGSTEN
- Descriptors DEC
- ELEMENTS; FILMS; MAGNETIC MATERIALS; MATERIALS; METALS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS; TRANSITION TEMPERATURE