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Advances in Nano Research Volume 3, Number 1, March 2015, pages 39-47 DOI: http://dx.doi.org/10.12989/anr.2015.3.1.039 |
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Generation of valley polarized current in graphene using quantum adiabatic pumping |
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Jing Wang and K.S. Chan
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| Abstract | ||
| We study a device structure which can be used to generate pure valley current and valley polarized current using quantum adiabatic pumping. The design of the structure allows the flexibility of changing the structure from one for pure valley current generation to one for valley polarized current generation by changing the applied electric potentials through changing the symmetry of the structure. The device is useful for the development of valleytronic devices. | ||
| Key Words | ||
| nano-physics; nano-devices; nano-science; nano-tech; nano-carbon | ||
| Address | ||
| Jing Wang: The Key Lab of RF Circuits and Systems of Ministry of Education of China, Hangzhou Dianzi University, Zhejiang, China; Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, P.R. China K.S. Chan: Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, P.R. China; City University Shenzhen Research Institute, Shenzhen, P.R. China | ||