Highly efficient (Cs < inf> 8 V) superatom-based spin-polarizer
Document Type
Article
Publication Date
11-24-2009
Abstract
Quantum transport through molecules and the possibility to manipulate spin has generated tremendous excitement. Here, we demonstrate unusual spin transport through a molecule of two Cs8 V magnetic superatoms. Calculations based on density functional theory and nonequilibrium Green's function methods find a much higher current for the spin-down charge carriers relative to the spin-up carriers in the model Au- (Cs8 V) - (Cs8 V) -Au device system with almost 100% spin polarization, indicating a highly efficient spin polarizer. The new behavior is rooted in strong coupling of the localized magnetic core on V and the itinerant electrons of the Cs shell atoms leading to nearly full spin polarization. © 2009 American Institute of Physics.
Publication Title
Applied Physics Letters
Recommended Citation
He, H.,
Pandey, R.,
Reveles, J.,
Khanna, S.,
&
Karna, S.
(2009).
Highly efficient (Cs < inf> 8 V) superatom-based spin-polarizer.
Applied Physics Letters,
95(19).
http://doi.org/10.1063/1.3259646
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/8885