Tunnel magnetoresistance of the heterocyclic molecular junctions: A green's function approach
Journal of Superconductivity and Novel Magnetism, ISSN: 1557-1939, Vol: 25, Issue: 6, Page: 1965-1970
2012
- 6Citations
- 5Captures
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Article Description
We explore the spin-dependent transport properties in a molecular junction model made of heterocyclic molecules such as poythiophene, polyfuran, and polypyrrole sandwiched between ferromagnetic three-dimensional electrodes, hereafter named FM/h-molecule/FM junction, based on a tight-binding model and a generalized Green's function method in the Landauer-Büttiker formalism. The coherent spin-dependent transport through the energy levels of heterocyclic molecules, the transmittance, current-voltage (I-V ) characteristics, and the tunnel magnetoresistance (TMR) of the FM/h-molecule/FM junction are numerically investigated. It is found that the spin-dependent transport properties are importantly influenced by the heteroatoms in the heterocyclic molecules. It is shown that the TMR of the molecular junction can be quite large (over 69 %) depending on the applied voltage and the molecular field of the FM electrodes. © Springer Science+Business Media, LLC 2012.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84864600309&origin=inward; http://dx.doi.org/10.1007/s10948-012-1544-y; http://link.springer.com/10.1007/s10948-012-1544-y; http://link.springer.com/content/pdf/10.1007/s10948-012-1544-y; http://link.springer.com/content/pdf/10.1007/s10948-012-1544-y.pdf; http://link.springer.com/article/10.1007/s10948-012-1544-y/fulltext.html; https://dx.doi.org/10.1007/s10948-012-1544-y; https://link.springer.com/article/10.1007/s10948-012-1544-y; http://www.springerlink.com/index/10.1007/s10948-012-1544-y; http://www.springerlink.com/index/pdf/10.1007/s10948-012-1544-y
Springer Science and Business Media LLC
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