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 study ns scale spin-torque-induced switching in perpendicularly magnetizedtunnel junctions (pMTJ). Although the switching voltages match with themacrospin instability threshold, the electrical signatures of the reversalindicate the presence of domain walls in junctions of various sizes. In theantiparallel (AP) to parallel (P) switching, a nucleation phase is followed byan irreversible flow of a wall through the sample at an average velocity of 40m/s with back and forth oscillation movements indicating a Walker propagationregime. A model with a single-wall locally responding to the spin-torquereproduces the essential dynamical signatures of the reversal. The P to APtransition has a complex dynamics with dynamical back-hopping whose probabilityincreases with voltage. We attribute this back-hopping to the instability ofthe nominally fixed layers.

Time-resolved spin-torque switching in MgO-based perpendicularly magnetized tunnel junctions