English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present switching field distributions of spin-transfer assistedmagnetization reversal in perpendicularly magnetized Co/Ni multilayerspin-valve nanopillars at room temperature. Switching field measurements of theCo/Ni free layer of spin-valve nanopillars with a 50 nm x 300 nm ellipse crosssection were conducted as a function of current. The validity of a model thatassumes a spin-current dependent effective barrier for thermally activatedreversal is tested by measuring switching field distributions under applieddirect currents. We show that the switching field distributions deviatesignificantly from the double exponential shape predicted by the effectivebarrier model, beginning at applied currents as low as half of the zero fieldcritical current. Barrier heights extracted from switching field distributionsfor currents below this threshold are a monotonic function of the current.However, the thermally-induced switching model breaks down for currentsexceeding the critical threshold.

Spin-transfer assisted thermally activated switching distributions in perpendicularly magnetized spin valve nanopillars