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Velocity modulation of electron transport through a ferromagnetic silicene junction.
- Source :
- Chinese Physics B; Mar2016, Vol. 25 Issue 3, p1-1, 1p
- Publication Year :
- 2016
-
Abstract
- We address velocity-modulation control of electron wave propagation in a normal/ferromagnetic/normal silicene junction with local variation of Fermi velocity, where the properties of charge, valley, and spin transport through the junction are investigated. By matching the wavefunctions at the normal-ferromagnetic interfaces, it is demonstrated that the variation of Fermi velocity in a small range can largely enhance the total conductance while keeping the current nearly fully valley- and spin-polarized. Further, the variation of Fermi velocity in ferromagnetic silicene has significant influence on the valley and spin polarization, especially in the low-energy regime. It may drastically reduce the high polarizations, which can be realized by adjusting the local application of a gate voltage and exchange field on the junction. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 25
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 113561022
- Full Text :
- https://doi.org/10.1088/1674-1056/25/3/037309