Epitaxial PtMn/NiFe exchange-biased bilayers containing directly deposited ordered PtMn
- 1. Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU (United Kingdom)
- 2. Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH (United Kingdom)
Description
PtMn/NiFe exchange-biased bilayers have been grown epitaxially on Si (001) using molecular-beam epitaxy. Spontaneous formation of the chemically ordered face-centered-tetragonal phase of PtMn layer was confirmed without postgrowth magnetic-field annealing, whose Neel axis is perpendicular to the PtMn/NiFe interface. The exchange anisotropy field stabilizes above a PtMn thickness of 15 nm which is much lower than that for polycrystalline PtMn-based exchange-biased systems. For comparison, PtMn/NiFe exchange-biased bilayers have been prepared epitaxially on MgO (001) substrate. Spontaneous formation of the chemically ordered PtMn layer was also confirmed with Neel axis parallel to the PtMn/NiFe interface. The exchange anisotropy field of the bilayer on MgO stabilizes beyond a PtMn thickness of 15 nm as well
Additional details
Identifiers
- DOI
- 10.1063/1.1852440;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 97
- Journal Issue
- 10
- Journal Page Range
- p. 10C512-10C512.3
- 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
- 37024056
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANISOTROPY; ANNEALING; ANTIFERROMAGNETIC MATERIALS; CRYSTAL GROWTH; EXCHANGE INTERACTIONS; FERROMAGNETIC MATERIALS; HYSTERESIS; INTERFACES; IRON ALLOYS; MAGNESIUM OXIDES; MAGNETIC FIELDS; MAGNETISM; MANGANESE ALLOYS; MOLECULAR BEAM EPITAXY; MORPHOLOGY; NEEL TEMPERATURE; NICKEL ALLOYS; PLATINUM ALLOYS; POLYCRYSTALS; SUBSTRATES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CHALCOGENIDES; CRYSTAL GROWTH METHODS; CRYSTALS; EPITAXY; HEAT TREATMENTS; INTERACTIONS; MAGNESIUM COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLATINUM METAL ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2005 American Institute of Physics