Published November 2003
| Version v1
Journal article
Magnetic tunneling junctions with permalloy electrodes: a study of barrier, thermal annealing, and interlayer coupling
Description
Magnetic properties of Ni81Fe19/Al2O3/Ni81Fe19 tunneling junctions are studied for different Al thicknesses and plasma oxidation times. A maximal magnetoresistance of 34% is obtained with Al thickness of 20 A. Magnetometry reveals large exchange bias fields (∼400 Oe) over a wide range of barrier thicknesses, indicating junctions of high quality. Transport measurements conducted on junctions before and after thermal annealing show a dramatic improvement in barrier quality after annealing. Interlayer coupling fields have been measured as a function of barrier thickness for different oxidation times
Additional details
Identifiers
- DOI
- 10.1016/S0304-8853(03)00298-1;
- arXiv
- arXiv:cond-mat/9701114v1;
- PII
- S0304885303002981;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 267
- Journal Issue
- 1
- Journal Page Range
- p. 133-138
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35025880
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; ANNEALING; COUPLING; ELECTRODES; IRON ALLOYS; MAGNETORESISTANCE; NICKEL ALLOYS; OXIDATION; PERMALLOY; THICKNESS; TUNNEL EFFECT
- Descriptors DEC
- ALLOYS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; DIMENSIONS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; HEAT TREATMENTS; IRON ALLOYS; NICKEL ALLOYS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.