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Graphene spin capacitor for magnetic field sensing.
- Source :
- Applied Physics Letters; 7/5/2010, Vol. 97 Issue 1, p013106, 3p, 2 Diagrams, 1 Graph
- Publication Year :
- 2010
-
Abstract
- An analysis of a magnetic field sensor based on a graphene spin capacitor is presented. The proposed device consists of graphene nanoribbons on top of an insulator material connected to a ferromagnetic source/drain. The time evolution of spin polarized electrons injected into the capacitor can be used for an accurate determination at room temperature of external magnetic fields. Assuming a spin relaxation time of 100 ns, magnetic fields on the order of ∼10 mOe may be detected at room temperature. The observational accuracy of this device depends on the density of magnetic defects and spin relaxation time that can be achieved. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 97
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 52060147
- Full Text :
- https://doi.org/10.1063/1.3462297