Research Data Leeds Repository

Citation

Temple, Rowan C. and Rosamond, Mark C. and Massey, Jamie R. and Almeida, Trevor P. and Linfield, Edmund and McGrouther, Damien and McVitie, Stephen and Moore, Thomas A. and Marrows, Christopher H. (2020) Data associated with "Phase domain boundary motion and memristance in gradient-doped FeRh nanopillars induced by spin injection". University of Leeds. [Dataset] https://doi.org/10.5518/969

Dataset description

The B2-ordered alloy FeRh shows a metamagnetic phase transition, transforming from antiferromagnetic (AF) to ferromagnetic (FM) order at a temperature $T_\mathrm{t} \sim 380 $~K in bulk. As well as temperature, the phase transition can be triggered by many means such as strain, chemical doping, or magnetic or electric fields. Its first-order nature means that phase coexistence is possible. Here we show that a phase boundary in a 300~nm diameter nanopillar, controlled by a doping gradient during film growth, is moved by an electrical current in the direction of electron flow. We attribute this to spin injection from one magnetically ordered phase region into the other driving the phase transition in a region just next to the phase boundary. The associated change in resistance of the nanopillar shows memristive properties, suggesting potential applications as memory cells or artificial synapses in neuromorphic computing schemes.

Subjects:	F000 - Physical sciences > F300 - Physics > F320 - Chemical physics > F321 - Solid-state physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1063/5.0038950 Publication https://eprints.whiterose.ac.uk/172053/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	29 Apr 2021 10:29
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/833
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Temple, Rowan C. https://orcid.org/0000-0002-2461-9022 University of Leeds https://ror.org/024mrxd33 ror Rosamond, Mark C. University of Leeds https://ror.org/024mrxd33 ror Massey, Jamie R. https://orcid.org/0000-0002-7793-7008 University of Leeds https://ror.org/024mrxd33 ror Almeida, Trevor P. https://orcid.org/0000-0003-4683-6279 University of Glasgow https://ror.org/00vtgdb53 ror Linfield, Edmund https://orcid.org/0000-0001-6912-0535 University of Leeds https://ror.org/024mrxd33 ror McGrouther, Damien https://orcid.org/0000-0003-4893-0808 University of Glasgow https://ror.org/00vtgdb53 ror McVitie, Stephen https://orcid.org/0000-0003-4511-6413 University of Glasgow https://ror.org/00vtgdb53 ror Moore, Thomas A. https://orcid.org/0000-0001-6443-2556 University of Leeds https://ror.org/024mrxd33 ror Marrows, Christopher H. https://orcid.org/0000-0003-4812-6393 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: EPSRC, EPSRC, Diamond Light source Grant numbers: EP/M018504/1, EP/M019020/1 Publication date: 2020 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: phychm@leeds.ac.uk Last Modified: 01 Nov 2024 15:57

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Data

Raw SEM image for figure 1b [814kB] Raw SEM image for figure 1b [814kB] Raw SEM image for figure 1b [814kB] Security: Anyone File name: d7_LHS_b3_t75_016.tif Content type: Data Mime-Type: image/tiff License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 814kB

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