Peculiarities of spin polarization inversion at a thiophene/cobalt interface
KAUST DepartmentComputational Physics and Materials Science (CPMS)
KAUST Supercomputing Laboratory (KSL)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Spintronics Theory Group
Supercomputing, Computational Scientists
Preprint Posting Date2012-06-28
Online Publication Date2013-03-20
Print Publication Date2013-03-18
Permanent link to this recordhttp://hdl.handle.net/10754/316704
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AbstractWe perform ab initio calculations to investigate the spin polarization at the interface between a thiophene molecule and cobalt substrate. We find that the reduced symmetry in the presence of a sulfur atom (in the thiophene molecule) leads to a strong spatial dependence of the spin polarization of the molecule. The two carbon atoms far from the sulfur acquire a polarization opposite to that of the substrate, while the carbon atoms bonded directly to sulfur possess the same polarization as the substrate. We determine the origin of this peculiar spin interface property as well as its impact on the spin transport.
CitationWang X, Zhu Z, Manchon A, Schwingenschlögl U (2013) Peculiarities of spin polarization inversion at a thiophene/cobalt interface. Appl Phys Lett 102: 111604. doi:10.1063/1.4798255.
JournalApplied Physics Letters