Journal article
Suppression of the Hanle effect in organic spintronic devices
Physical review letters, Vol.111(1), pp.016601-016601
07/05/2013
Handle:
https://hdl.handle.net/2376/107162
PMID: 23863018
Abstract
We study carrier spin transport under a transverse magnetic field in organic structures. In organics, carriers are localized polarons and charge transport is via polaron hopping. Spin transport, however, can utilize the exchange coupling between localized polarons, which can be much faster than polaron hopping and rapidly increases with the carrier density. Consequently, a much stronger magnetic field is needed to modify spin polarization and observe the Hanle effect than estimated from the carrier mobility, which can help with the understanding of recent Hanle measurements in organic spin valves. The exchange-induced spin transport also greatly mitigates the conductivity mismatch between ferromagnets and organics, enabling spin injection into organics.
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Details
- Title
- Suppression of the Hanle effect in organic spintronic devices
- Creators
- Z G Yu - SRI International, 333 Ravenswood Avenue, Menlo Park, California 94025, USA
- Publication Details
- Physical review letters, Vol.111(1), pp.016601-016601
- Academic Unit
- Institute for Shock Physics
- Publisher
- United States
- Identifiers
- 99900547272101842
- Language
- English
- Resource Type
- Journal article