Published July 21, 2008 | Version v1
Journal article Metadata-only

Granular L10 FePt:TiO2 (001) nanocomposite thin films with 5 nm grains for high density magnetic recording

Creators

  • 1. Data Storage Institute, DSI Building, 5 Engineering Drive 1, Singapore 117608 (Singapore)
  • 2. Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore)
  • 3. Seagate Research, Seagate Technology, LLC., 1251 Waterfront Place, Pittsburgh, Pennsylvania 15222 (United States)

Description

FePt:TiO2 (001) thin films were deposited on CrRu/MgO underlayers by dc magnetron cosputtering. The effects of TiO2 content on microstructure and magnetic properties of the epitaxial FePt (001) films were studied. Experimental results showed that even with 20 vol % TiO2 doping, FePt films could keep a (001) preferred orientation and perpendicular anisotropy. The FePt:TiO2 (001) film with 5 nm grain size, adjustable coercivity, and reduced exchange coupling was obtained by doping 20 vol % TiO2 into FePt film, showing great potential as low noise ultrahigh density perpendicular magnetic recording media

Additional details

Identifiers

DOI
10.1063/1.2953173;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
93
Journal Issue
3
Journal Page Range
p. 032506-032506.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40006697
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANISOTROPY; COERCIVE FORCE; COMPOSITE MATERIALS; DEPOSITION; EPITAXY; GRAIN ORIENTATION; GRAIN SIZE; IRON ALLOYS; LAYERS; MAGNESIUM OXIDES; MAGNETIC PROPERTIES; NANOSTRUCTURES; PLATINUM ALLOYS; SPUTTERING; THIN FILMS; TITANIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CHALCOGENIDES; CRYSTAL GROWTH METHODS; FILMS; MAGNESIUM COMPOUNDS; MATERIALS; MICROSTRUCTURE; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS; SIZE; TITANIUM COMPOUNDS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
(c) 2008 American Institute of Physics