Ion-beam-induced chemical-vapor deposition of FePt and CoPt particles
Creators
- 1. Information Storage Materials Laboratory, Toyota Technological Institute, 2-12-1 Hisakata, Tempaku, Nagoya 468-8511 (Japan)
Description
FePt and CoPt particles have been directly deposited on Si3N4 substrate by ion-beam-induced chemical-vapor deposition (IBICVD) with a focused ion-beam system. The as-deposited FePt particles are amorphous and crystallize into fcc structure after annealing at 600 deg. C. The as-deposited CoPt particles and the CoPt particles annealed at 600 deg. C are both in fcc structure, but annealing improves the crystallization of the CoPt particles. After applying a 20-kOe magnetic field perpendicular to the Si3N4 substrate, the magnetic force microscopy images of annealed FePt and CoPt particles both show concentric domain patterns, implying the alternately up- and downward perpendicular components of magnetizations. The successful fabrication of FePt and CoPt particles may lead to the potential application of IBICVD for nanoparticles and clusters which have not been synthesized yet
Additional details
Identifiers
- DOI
- 10.1063/1.1851875;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 97
- Journal Issue
- 10
- Journal Page Range
- p. 10K308-10K308.3
- ISSN
- 0021-8979
- CODEN
- JAPIAU
Conference
- Title
- 49. annual conference on magnetism and magnetic materials
- Dates
- 7-11 Nov 2004
- Place
- Jacksonville, FL (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37026035
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANNEALING; ATOMIC FORCE MICROSCOPY; BINARY ALLOY SYSTEMS; CHEMICAL VAPOR DEPOSITION; COBALT ALLOYS; CRYSTALLIZATION; FABRICATION; FCC LATTICES; FERROMAGNETIC MATERIALS; ION BEAMS; IRON ALLOYS; MAGNETIC FIELDS; MAGNETIZATION; NANOSTRUCTURES; PARTICLES; PLATINUM ALLOYS; SILICON NITRIDES; SUBSTRATES
- Descriptors DEC
- ALLOY SYSTEMS; ALLOYS; BEAMS; CHEMICAL COATING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DEPOSITION; HEAT TREATMENTS; MAGNETIC MATERIALS; MATERIALS; MICROSCOPY; NITRIDES; NITROGEN COMPOUNDS; PHASE TRANSFORMATIONS; PLATINUM METAL ALLOYS; PNICTIDES; SILICON COMPOUNDS; SURFACE COATING; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- (c) 2005 American Institute of Physics