Effects of total thickness on (001) texture, surface morphology, and magnetic properties of [Fe/Pt]{sub n} multilayer films by monatomic layer deposition

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3489989· OSTI ID:21476519

Yu, Y S ^[1]; George, T A; Yue, L P; Sellmyer, D J ^[1]; Li, W L; Fei, W D ^[2]; Haibo, Li; Mei, Liu ^[3]

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1. Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588 (United States)
2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 (China)
3. College of Physics, Jilin Normal University, Siping 136000 (China)

Atomic-scale [Fe/Pt]{sub n} multilayer films with different total thickness were prepared on thermally oxidized Si (100) substrates at room temperature by monatomic layer deposition using dc-magnetron and rf-magnetron sputtering. Effects of the total thickness on (001) texture, surface morphology, and magnetic properties of the postannealed films have been investigated. It is found that the particlelike structure films with perfect (001) texture and perpendicular magnetic anisotropy are obtained with a thickness of less than or equal to 6.5 nm. After 500 deg. C annealing, the films with thickness of 6.5 and 11.9 nm show very smooth surface. In addition, with increasing total thickness of the films, (001) texture and perpendicular magnetic anisotropy of the annealed films deteriorate, and the films become continuous in structure. The total thickness of the films also affects the exchange-coupling interaction among FePt magnetic grains and the magnetization reversal process.

• OSTI ID: 21476519
• Journal Information: Journal of Applied Physics, Vol. 108, Issue 7; Other Information: DOI: 10.1063/1.3489989; (c) 2010 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
ANNEALING
CRYSTAL STRUCTURE
DEPOSITION
IRON
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
OXIDATION
PLATINUM
SILICON
SPUTTERING
SUBSTRATES
SURFACES
TEMPERATURE RANGE 0273-0400 K
TEXTURE
THICKNESS
THIN FILMS
CHEMICAL REACTIONS
DIMENSIONS
ELEMENTS
FILMS
HEAT TREATMENTS
METALS
PHYSICAL PROPERTIES
PLATINUM METALS
SEMIMETALS
TEMPERATURE RANGE
TRANSITION ELEMENTS