Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1544997 | Physica E: Low-dimensional Systems and Nanostructures | 2011 | 5 Pages |
Spin precession formula is deduced in graphene with Rashba spin-orbit coupling (RSOC) and exchange field, which can control accurately the transmission of up-spin and down-spin electrons. And a wide-angle spin filter can be achieved by the combined effects of exchange field and RSOC. Further spin polarization can be observed, which increases with increasing RSOC or exchange field.
A wide-angle spin filter can be achieved in graphene-based nanostructure with spatially modulated RSOC and exchange field.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Spin precession formula is deduced in graphene with the RSOC and exchange field. ► Wide-angle spin filter and spin convert can be achieved. ► Positive and negative spin polarization can be achieved. ► Spin polarization increases with increasing the RSOC or exchange field.