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https://doi.org/10.1063/1.3299264
Title: | Perfect spin-filter and spin-valve in carbon atomic chains | Authors: | Zeng, M.G. Shen, L. Cai, Y.Q. Sha, Z.D. Feng, Y.P. |
Issue Date: | 2010 | Citation: | Zeng, M.G., Shen, L., Cai, Y.Q., Sha, Z.D., Feng, Y.P. (2010). Perfect spin-filter and spin-valve in carbon atomic chains. Applied Physics Letters 96 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3299264 | Abstract: | We report ab initio calculations of spin-dependent transport in single atomic carbon chains bridging two zigzag graphene nanoribbon electrodes. Our calculations show that carbon atomic chains coupled to graphene electrodes are perfect spin-filters with almost 100% spin polarization. Moreover, the carbon atomic chains show bias-dependent magnetoresistance as large as 106 % which make them perfect spin-valves. These two spin-related properties are independent of the length of carbon chains. The simultaneous occurrence of spin-filter and spin-valve in a single device opens the possibilities of all-carbon composite spintronics. © 2010 American Institute of Physics. | Source Title: | Applied Physics Letters | URI: | http://scholarbank.nus.edu.sg/handle/10635/97507 | ISSN: | 00036951 | DOI: | 10.1063/1.3299264 |
Appears in Collections: | Staff Publications |
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