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Spin tunneling in junctions with disordered ferromagnets
- Source :
- Physical Review Letters, 100, 5, pp. 057205-057208, Physical Review Letters, 100(5):057205, 057205-1/4. American Physical Society, Physical Review Letters, 100(5). AMER PHYSICAL SOC, Physical Review Letters, 100, 057205-057208
- Publication Year :
- 2008
-
Abstract
- We provide compelling evidence to establish that, contrary to one's elementary guess, the tunneling spin polarization (TSP) of amorphous CoFeB is larger than that of highly textured fcc CoFeB. First principles atomic and electronic structure calculations reveal striking agreement between the measured TSP and the predicted s-electron spin polarization. Given the disordered structure of the ternary alloy, not only do these results strongly endorse our communal understanding of tunneling through AlOx, but they also portray the key concepts that demand primary consideration in such complex systems.<br />Comment: To be published in Physical Review Letters. 5 double-column pages with 3 figures
- Subjects :
- Physics
Condensed Matter - Materials Science
Condensed matter physics
Spin polarization
Complex system
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
General Physics and Astronomy
Electronic structure
Ternary alloy
Amorphous solid
Condensed Matter::Materials Science
Ferromagnetism
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Spin tunneling
Electronic Structure of Materials
Quantum tunnelling
Subjects
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Volume :
- 100
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi.dedup.....83a172e502322961bb14840a07e97ec4
- Full Text :
- https://doi.org/10.1103/physrevlett.100.057205