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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Josephson junctions containing ferromagnetic materials have attracted intenseinterest both because of their unusual physical properties and because theyhave potential application for cryogenic memory. There are two ways to storeinformation in such a junction: either in the amplitude of the critical currentor in the ground-state phase difference across the junction; the latter is thetopic of this paper. We have recently demonstrated two different ways toachieve phase control in such junctions: the first uses junctions containingtwo magnetic layers in a "pseudo spin valve" configuration, while the seconduses junctions containing three magnetic layers with non-collinearmagnetizations. The demonstration devices, however, have not yet been optimizedfor use in a large-scale cryogenic memory array. In this paper we outline someof the issues that must be considered to perform such an optimization, and weprovide a speculative "phase-diagram" for the nickel-permalloy spin-valvesystem showing which combinations of ferromagnetic layer thicknesses shouldproduce useful devices.

Ferromagnetic Josephson junctions for cryogenic memory