Please use this identifier to cite or link to this item:
|Title:||Graphene-based bipolar spin diode and spin transistor: Rectification and amplification of spin-polarized current||Authors:||Zeng, M.
|Issue Date:||14-Mar-2011||Citation:||Zeng, M., Shen, L., Zhou, M., Zhang, C., Feng, Y. (2011-03-14). Graphene-based bipolar spin diode and spin transistor: Rectification and amplification of spin-polarized current. Physical Review B - Condensed Matter and Materials Physics 83 (11) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevB.83.115427||Abstract:||Using nonequilibrium Green's function method combined with density functional theory we report bipolar spin diode behavior in zigzag graphene nanoribbons (ZGNRs). Nearly ±100% spin-polarized current can be generated and tuned by a source-drain voltage and/or magnetic configurations in these two-terminal bipolar spin diodes. This unique transport property is attributed to the intrinsic transmission selection rule of the wave function of spin subbands near the Fermi level in ZGNRs. Moreover, the bias voltage and magnetic configurations of the two-terminal ZGNR-based spin diodes provide a rich variety of ways to control the spin current, which can be used to design three-terminal spin transistors. These ZGNRs-based components make possible the manipulation of spin-polarized current such as rectification and amplification for carbon-based spintronics. © 2011 American Physical Society.||Source Title:||Physical Review B - Condensed Matter and Materials Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/56155||ISSN:||10980121||DOI:||10.1103/PhysRevB.83.115427|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.