IMPROVED DETERMINATION OF THE ULTRATHIN STRUCTURAL PARAMETERS OF CO/PD MULTILAYERED FILM, AND ITS MAGNETIC AND MAGNETOOPTICAL PROPERTIES
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- Title
- IMPROVED DETERMINATION OF THE ULTRATHIN STRUCTURAL PARAMETERS OF CO/PD MULTILAYERED FILM, AND ITS MAGNETIC AND MAGNETOOPTICAL PROPERTIES
- Authors
- HONG, JH; JEONG, JI; KANG, JS; KIM, SK; KOO, YM; LEE, YP; SHIN, HJ
- Date Issued
- 1994-09
- Publisher
- A V S AMER INST PHYSICS
- Abstract
- Co/Pd multilayered films with ultrathin layers of Co were prepared by alternating deposition in an ultrahigh-vacuum physical-vapor-deposition system. The individual layer thicknesses of the samples were estimated making use of the angular positions of x-ray diffraction peaks. The magnetic and magneto-optical properties were found to vary depending on Pd buffer layer and Pd sublayer thicknesses, as well as Co sublayer thickness. Some of the films showed good properties for magneto-optical medium, such as large perpendicular magnetic anisotropy and Kerr rotation, and perfect squareness of the magnetic hysteresis loop. The Pd-predeposited films were found to have a remarkably high coercivity of 4723 Oe and a greatly enhanced interfacial magnetic anisotropy of 0.72 mJ/m2. The transition from in-plane to perpendicular magnetic anisotropy took place at a Co sublayer thickness of 8.2 angstrom for the multilayer with Pd predeposition. Kerr rotation was inversely proportional to the Pd/Co sublayer thickness ratio, showing the maximum value of 0.12-degrees. The magnetic and magneto-optical properties were correlated systematically to the structural parameters of the multilayered films.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29253
- DOI
- 10.1116/1.579087
- ISSN
- 0734-2101
- Article Type
- Article
- Citation
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, vol. 12, no. 5, page. 2672 - 2679, 1994-09
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