Effect of different conductivity between the spin polarons on spin injection in a ferromagnet/organic semiconductor system |
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| Authors: | Yilin Mi Ming Zhang Hui Yan |
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| Affiliation: | a College of Materials Science and Engineering, Beijing University of Technology, 100022 Beijing, China
b College of Science, North China University of Technology, 100041 Beijing, China |
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| Abstract: | Spin injection across ferromagnet/organic semiconductor system with finite width of the layers was studied theoretically considering spin-dependent conductivity in the organic-semiconductor. It was found that the spin injection efficiency is directly dependent on the difference between the conductivity of the up-spin and down-spin polarons in the spin-injected organic system. Furthermore, the finite width of the structure, interfacial electrochemical-potential and conductivity mismatch have great influence on the spin injection process across ferromagnet/organic semiconductor interface. |
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| Keywords: | 75.80.Le 72.25.-b 72.25.Mk |
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