학술논문
Spin tunneling in junctions with disordered ferromagnets
Document Type
Working Paper
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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.
Comment: To be published in Physical Review Letters. 5 double-column pages with 3 figures
Comment: To be published in Physical Review Letters. 5 double-column pages with 3 figures