Abstract
We describe a strategy to reduce spin transfer switching (STS) currents in CoFe/Pd-based perpendicular anisotropy single spin valves (SSVs) by the insertion of an in-plane spin polarizer, thus creating a modified-dual spin valve (m -DSV). For SSV devices, concurrent STS of both magnetic layers was observed for positive currents, making the parallel-to-antiparallel (P→AP) transition impossible. In m -DSV devices, we observed a 60% reduction in the energy barrier for AP→P transitions and a 40% reduction in J cAP→P with 10 ns STS current pulses compared to SSV devices. Furthermore, the m -DSV structure enabled the soft layer to switch independently from the hard layer via STS.
Original language | English |
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Article number | 062516 |
Journal | Applied Physics Letters |
Volume | 94 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2009 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)