Effectiveness of organic molecules for spin filtering in an organic spin valve: Reaction-induced spin polarization for Co atopAlq3

2015 ◽  
Vol 91 (4) ◽  
Author(s):  
Tu-Ngoc Lam ◽  
Yu-Ling Lai ◽  
Chih-Han Chen ◽  
Po-Hung Chen ◽  
Yuet-Loy Chan ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Organic Molecules ◽  
Spin Valve ◽  
Spin Filtering

Influence of oxidation on the spin-filtering properties ofCoFe2O4and the resultant spin polarization

2008 ◽  
Vol 78 (18) ◽  
Author(s):  
A. V. Ramos ◽  
T. S. Santos ◽  
G. X. Miao ◽  
M.-J. Guittet ◽  
J.-B. Moussy ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Spin Filtering

scholarly journals Spin-dependent charge transport through 2D chiral hybrid lead-iodide perovskites

2019 ◽  
Vol 5 (12) ◽  
pp. eaay0571 ◽  
Author(s):  
Haipeng Lu ◽  
Jingying Wang ◽  
Chuanxiao Xiao ◽  
Xin Pan ◽  
Xihan Chen ◽  
...  
Keyword(s):  
Charge Transport ◽  
Organic Molecules ◽  
Spin Valve ◽  
Lead Iodide ◽  
Force Microscopy ◽  
Atomic Force ◽  
Hybrid Perovskite ◽  
The Media ◽  
Inorganic Framework ◽  
Inorganic Layers

Chiral-induced spin selectivity (CISS) occurs when the chirality of the transporting medium selects one of the two spin ½ states to transport through the media while blocking the other. Monolayers of chiral organic molecules demonstrate CISS but are limited in their efficiency and utility by the requirement of a monolayer to preserve the spin selectivity. We demonstrate CISS in a system that integrates an inorganic framework with a chiral organic sublattice inducing chirality to the hybrid system. Using magnetic conductive-probe atomic force microscopy, we find that oriented chiral 2D-layered Pb-iodide organic/inorganic hybrid perovskite systems exhibit CISS. Electron transport through the perovskite films depends on the magnetization of the probe tip and the handedness of the chiral molecule. The films achieve a highest spin-polarization transport of up to 86%. Magnetoresistance studies in modified spin-valve devices having only one ferromagnet electrode confirm the occurrence of spin-dependent charge transport through the organic/inorganic layers.

scholarly journals Spintronics: Enantiospecific Spin Polarization of Electrons Photoemitted Through Layers of Homochiral Organic Molecules (Adv. Mater. 44/2014)

2014 ◽  
Vol 26 (44) ◽  
pp. 7531-7531
Author(s):  
Miguel Ángel Niño ◽  
Iwona Agnieszka Kowalik ◽  
Francisco Jesús Luque ◽  
Dimitri Arvanitis ◽  
Rodolfo Miranda ◽  
...  
Keyword(s):  
Spin Polarization ◽  
Organic Molecules

scholarly journals k-space spin filtering effect in the epitaxial Fe/Au/Fe/GaAs(001) spin-valve

2013 ◽  
Vol 103 (20) ◽  
pp. 202408 ◽  
Author(s):  
M. Hervé ◽  
S. Tricot ◽  
Y. Claveau ◽  
G. Delhaye ◽  
B. Lépine ◽  
...  
Keyword(s):  
Spin Valve ◽  
Filtering Effect ◽  
Spin Filtering

CONTROLLABLE SPIN-FILTERING AND MAGNETOCONDUCTANCE IN A NOVEL HYBRID FM/2DEG/FM STRUCTURE

2003 ◽  
Vol 17 (27n28) ◽  
pp. 1437-1444
Author(s):  
Y. JIANG ◽  
M. B. A. JALIL
Keyword(s):  
Ballistic Transport ◽  
Spin Valve ◽  
Fringe Field ◽  
Dimensional Electron ◽  
Spin Filter ◽  
Field Sweep ◽  
Magnetization Direction ◽  
Dimensional Electron Gas ◽  
Strong Spin ◽  
Spin Filtering

Spin-dependent ballistic transport is studied for a two-dimensional electron gas (2DEG) heterostructure, sandwiched between two ferromagnetic metal (FM) layers. The device exhibits a strong spin-filtering behavior when the magnetization directions of the FM layers are anti-parallel to one another. Additionally, a pronounced magnetoconductance (MC) effect is predicted when the relative magnetization direction of the FM layers is changed, e.g. by applying an external magnetic field sweep. Both the spin-filter and spin-valve (SV) functions can be tuned externally by adjusting the applied voltage and the fringe field strength from the FM layers. Compared to conventional all-metal SVs, the proposed 2DEG-based SV potentially has the advantages of a higher MC ratio (of as high as 90%), external tenability, and less susceptibility to interfacial imperfections.

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