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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

With the rise in in-memory computing architectures to reduce thecompute-memory bottleneck, a new bottleneck is present between analog anddigital conversion. Analog content-addressable memories (ACAM) are beingrecently studied for in-memory computing to efficiently convert between analogand digital signals. Magnetic memory elements such as magnetic tunnel junctions(MTJs) could be useful for ACAM due to their low read/write energy and highendurance, but MTJs are usually restricted to digital values. The spin orbittorque-driven domain wall-magnetic tunnel junction (DW-MTJ) has been recentlyshown to have multi-bit function. Here, an ACAM circuit is studied that usestwo domain wall-magnetic tunnel junctions (DW-MTJs) as the analog storageelements. Prototype DW-MTJ data is input into the magnetic ACAM (MACAM) circuitsimulation, showing ternary CAM function. Device-circuit co-design is carriedout, showing that 8-10 weight bits are achievable, and that designingasymmetrical spacing of the available DW positions in the device leads toevenly spaced ACAM search bounds. Analyzing available spin orbit torquematerials shows platinum provides the largest MACAM search bound while stillallowing spin orbit torque domain wall motion, and that the circuit isoptimized with minimized MTJ resistance, minimized spin orbit torque materialresistance, and maximized tunnel magnetoresistance. These results show thefeasibility of using DW-MTJs for MACAM and provide design parameters.

Domain Wall-Magnetic Tunnel Junction Analog Content Addressable Memory Using Current and Projected Data