Back to Search
Start Over
Adatom-induced local reconstructions in zigzag silicene nanoribbons: Spin semiconducting properties and large spin thermopowers.
- Source :
-
Chemical Physics Letters . Jan2017, Vol. 667, p113-119. 7p. - Publication Year :
- 2017
-
Abstract
- Using first-principles methods, we have investigated magnetic properties and thermospin effects of zigzag silicene nanoribbons (ZSiNRs) absorbed by a single Si atom. After a relaxation, a steady dumbbell-like structure is formed, which induces a weaker antiferromagnetic (AFM) coupling between two zigzag edges. Therefore, a band gap is opened, meanwhile the adsorbed ZSiNRs show a spin semiconducting property. A large spin thermopower and weak charge thermopower in adsorbed ZSiNR-based devices can be simultaneously achieved, which is attributed to a nearly perfect mirror symmetry of spin-up and spin-down transmission spectra relative to the Fermi level. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ADATOMS
*NANORIBBONS
*SEMICONDUCTORS
*THERMOELECTRIC power
*SILICON
Subjects
Details
- Language :
- English
- ISSN :
- 00092614
- Volume :
- 667
- Database :
- Academic Search Index
- Journal :
- Chemical Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 120403399
- Full Text :
- https://doi.org/10.1016/j.cplett.2016.11.049