Open AccessDiffusion theory of spin injection into organic polymers*
Author(s) -
Junfeng Ren,
Fu Ji-Yong,
Desheng Liu,
Shijie Xie
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3814
Subject(s) - polaron , spin polarization , spin diffusion , condensed matter physics , ferromagnetism , organic semiconductor , materials science , polymer , polarization (electrochemistry) , spin (aerodynamics) , diffusion , physics , optoelectronics , thermodynamics , chemistry , electron , quantum mechanics , composite material
Based on the theory of electrical spin injection into semiconductors, by conside ring the car riers of spin polarons and spinless bipolarons in organic polymers, we suggested a model of spin injection into organic polymers. It was found that a high curre nt polarization can be obtained by adjusting the spin current polarization in the ferromagnetic layer or the conductivities of the ferromagnetic and organic layers. Effect of the proportion of polarons to carriers on the spin current polarization was discussed.