Journal article
Inverse magnetoresistance in Co/Ru/Co and dopedCo/Ru/Co0.92Ru0.08sandwiches
Physical review. B, Condensed matter, Vol.59(14), pp.9475-9481
04/1999
DOI: 10.1103/PhysRevB.59.9475
Abstract
The investigation of the transport properties of (Formula presented) and the doped (Formula presented) sandwiches series is reported, where (Formula presented) is the thickness of the Ru layer. Inverse magnetoresistance (MR) for all spacer layer thicknesses in the doped series and for sandwiches which present no antiferromagnetic coupling in the nondoped series is observed. This behavior is the consequence of the competition between bulk and interface spin-dependent scattering which contribute to negative and positive (inverse) MR, respectively. Detailed analysis of the results indicates that the main effect of the doping is to reduce the bulk spin-dependent scattering whose contribution becomes smaller than the interface spin-dependent scattering one. This gives rise to an inverse MR. This is further supported by ab initio calculations of the density of states at the Fermi level for pure Co and CoRu alloys as well as experimental temperature-dependent magnetization and MR measurements performed for the two series at room and low temperature
Details
- Title: Subtitle
- Inverse magnetoresistance in Co/Ru/Co and dopedCo/Ru/Co0.92Ru0.08sandwiches
- Creators
- K RahmouniA DiniaD StoefflerK OunadjelaH. A. M Van den BergH Rakoto
- Resource Type
- Journal article
- Publication Details
- Physical review. B, Condensed matter, Vol.59(14), pp.9475-9481
- DOI
- 10.1103/PhysRevB.59.9475
- NLM abbreviation
- Phys Rev B Condens Matter
- ISSN
- 0163-1829
- eISSN
- 1095-3795
- Publisher
- American Physical Society
- Language
- English
- Date published
- 04/1999
- Academic Unit
- Iowa Neuroscience Institute; Fraternal Order of Eagles Diabetes Research Center; Neuroscience and Pharmacology; Internal Medicine
- Record Identifier
- 9984070715602771
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