Published April 2009
| Version v1
Journal article
Room-temperature magnetoresistance in CoFeB/STO/CoFeB magnetic tunnel junctions
Creators
- 1. CRANN and School of Physics, Trinity College, Dublin 2 (Ireland)
Description
A series of Co40Fe40B20/SrTiO3/Co40Fe40B20 magnetic tunnel junctions with a bottom-pinned synthetic antiferromagnet have been prepared by sputtering. Devices optimally annealed at 325 deg. C exhibit an exchange bias of about 65 mT, and a tunnel magnetoresistance of 2%. The smaller than predicted effect is attributed to the lack of epitaxy between the crystallized CoFeB electrodes and the SrTiO3 (STO) barrier, due to poor crystal quality of the barrier layer. Unlike MgO, well-crystallized, oriented STO does not grow on amorphous Co40Fe40B20
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2008.04.153Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2008.04.153;
- PII
- S0304-8853(08)00562-3;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 321
- Journal Issue
- 8
- Journal Page Range
- p. 1009-1011
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40058701
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANNEALING; BORON ALLOYS; COBALT ALLOYS; EPITAXY; IRON ALLOYS; MAGNETORESISTANCE; SPUTTERING; STRONTIUM TITANATES; SUPERCONDUCTING JUNCTIONS; TEMPERATURE RANGE 0273-0400 K; TUNNEL EFFECT
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CRYSTAL GROWTH METHODS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; HEAT TREATMENTS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; STRONTIUM COMPOUNDS; TEMPERATURE RANGE; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.