Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10727523 | Physics Letters A | 2012 | 6 Pages |
Abstract
⺠For short carbon nanotubes there is a strong size effect of spin-polarized transport in FM/SWCNT/FM junctions. ⺠The effect of tunnel magnetoresistance (TMR) in zigzag tube is stronger than that in armchair tubes. ⺠For all zigzag tubes when the size exceeds a limit TMR reaches one maximum 20% and the size effect disappears. ⺠For zigzag tubes TMR value can be negative at some special sizes and the extremum is at the angle Ï. ⺠For all armchair tubes, TMR has two extrema: the maximum at Ï/2 and the minimum at Ï.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Hong Liu,