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

We demonstrate the influence of hard axis assist on an in-plane polarizednanomagnet layer to greatly enhance the sensitivity of a magnetic nano particle(MNP) based MTJ biosensor. The hard axis assist has been provided to thesensing layer in the forms of spin Hall Effect (SHE) induced spin injectedtorque and stress based effective magnetic field induced torque separately.Present work mainly focuses on the efficient and qualitative detection of asingle magnetic bead with the aim of detecting a single bimolecular recognitionevent at an extremely low analyte concentration. Interfacial spin currentarising from spin orbit metal is expected to impose a torque on the free layeralong sensitive direction improving the signal strength by a factor of ~ 6.5for a 100 nm bead at a height of 500 nm above the sensor surface. Furthermore,the potentiality of a multiferroic composite consisting of a piezoelectriclayer coupled with magnetostrictive CoFeB based MTJ has been investigated inthe Biosensing applications. An external stress voltage of 500 mV has beenobserved to be sufficient to enhance the sensitivity (~ 6 times). The use ofnanoscaled spin devices and the absence of external magnetic field operatedmagnetization rotation facilitates in achieving highly compact and extremelylow power designs. This establishes the possibility of utilizing the presentschemes for advanced, highly sensitive, miniaturized and low power bioassayingsystem-on-chip applications. Numerical results were compared with some earlierreported experimental results to validate our proposed model.

Spin Based Biosensor with Hard Axis Assist for Enhanced Sensitivity