|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
18 April 2024 |
|
| | | | |
|
Article forum
| |
|
|
Spin polarized parametric pumping | | Wu Junling
; Baigeng Wang
; Jian Wang
; | | Date: |
26 Apr 2002 | | Journal: | Phys. Reb. B Vol.66, 205327 (2002). | | Subject: | cond-mat | | Abstract: | We have developed a general theory for a parametric pump consisting of a nonmagnetic system with two ferromagnetic leads whose magnetic moments orient at an angle $ heta$ with respect to each other. In this theory, the leads can maintain at different chemical potential. As a result, the current is driven due to both the external bias and the pumping potentials. When both $ heta$ and external bias are zero, our theory recovers the known theory. In particular, two cases are considered: (a). in the adiabatic regime, we have derived the pumped current for arbitrary pumping amplitude and external bias. (b). at finite frequency, the system is away from equilibrium, we have derived the pumped current up to quadratic order in pumping amplitude. Numerical results show interesting spin valve effects for pumped current. | | Source: | arXiv, cond-mat/0204570 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No message found in this article forum.
You have a question or message about this article?
Ask the community and write a message in the forum.
If you want to rate this article, please use the review section..
To add a message in the forum, you need to login or register first. (free): registration page
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER