Spin filtering in single magnetic barrier structures revisited
(2006) In Applied Physics Letters 88(3).- Abstract
- We reexamine spin-dependent transport properties of two-dimensional electrons modulated by the stray field of a ferromagnetic metal (FM) stripe on top. When the magnetization is along the transport direction of the electrons, the FM stripe generates not only a magnetic barrier but also an in-plane magnetic field component. Previous studies have omitted the in-plane magnetic field component and shown that such a device does not possess any spin-filtering effect. We show that with inclusion of this in-plane magnetic field component, a spin polarization of nearly 100% can be achieved in such a single FM-stripe modulated two-dimensional electron gas device.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/419973
- author
- Zhai, Feng LU and Xu, Hongqi LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 88
- issue
- 3
- article number
- 032502
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000234757100039
- scopus:31144471623
- ISSN
- 0003-6951
- DOI
- 10.1063/1.2166204
- language
- English
- LU publication?
- yes
- id
- f127cc84-5a26-4376-a4c8-dd4af367b782 (old id 419973)
- date added to LUP
- 2016-04-01 11:37:04
- date last changed
- 2022-03-28 00:36:47
@article{f127cc84-5a26-4376-a4c8-dd4af367b782, abstract = {{We reexamine spin-dependent transport properties of two-dimensional electrons modulated by the stray field of a ferromagnetic metal (FM) stripe on top. When the magnetization is along the transport direction of the electrons, the FM stripe generates not only a magnetic barrier but also an in-plane magnetic field component. Previous studies have omitted the in-plane magnetic field component and shown that such a device does not possess any spin-filtering effect. We show that with inclusion of this in-plane magnetic field component, a spin polarization of nearly 100% can be achieved in such a single FM-stripe modulated two-dimensional electron gas device.}}, author = {{Zhai, Feng and Xu, Hongqi}}, issn = {{0003-6951}}, language = {{eng}}, number = {{3}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Spin filtering in single magnetic barrier structures revisited}}, url = {{http://dx.doi.org/10.1063/1.2166204}}, doi = {{10.1063/1.2166204}}, volume = {{88}}, year = {{2006}}, }