Nanoscale Magnetic Arrays through Block Copolymer Templating of Polyoxometalates

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dc.contributor.author Clyde, Daniel RM
dc.contributor.author Cortie, David L
dc.contributor.author Granville, Simon
dc.contributor.author Ware, David C
dc.contributor.author Brothers, Penelope J
dc.contributor.author Malmström, Jenny
dc.coverage.spatial United States
dc.date.accessioned 2024-04-03T00:52:27Z
dc.date.available 2024-04-03T00:52:27Z
dc.date.issued 2024-02
dc.identifier.citation (2024). Nano Letters, 24(7), 2165-2174.
dc.identifier.issn 1530-6984
dc.identifier.uri https://hdl.handle.net/2292/67887
dc.description.abstract Magnetic nanoarrays promise to enable new energy-efficient computations based on spintronics or magnonics. In this work, we present a block copolymer-assisted strategy for fabricating ordered magnetic nanostructures on silicon and permalloy substrates. Block copolymer micelle-like structures were used as a template in which polyoxometalate (POM) clusters could assemble in an opal-like structure. A combination of microscopy and scattering techniques was used to confirm the structural and organizational features of the fabricated materials. The magnetic properties of these materials were investigated by polarized neutron reflectometry, nuclear magnetic resonance, and magnetometry measurements. The data show that a magnetic structural design was achieved and that a thin layer of patterned POMs strongly influenced an underlying permalloy layer. This work demonstrates that the bottom-up pathway is a potentially viable method for patterning magnetic substrates on a sub-100 nm scale, toward the magnetic nanostructures needed for spintronic or magnonic crystal devices.
dc.format.medium Print-Electronic
dc.language eng
dc.publisher American Chemical Society (ACS)
dc.relation.ispartofseries Nano letters
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject block copolymer
dc.subject exchange bias
dc.subject magnon
dc.subject polarized neutron reflectometry
dc.subject polyoxometalate
dc.subject 3403 Macromolecular and Materials Chemistry
dc.subject 40 Engineering
dc.subject 34 Chemical Sciences
dc.subject Science & Technology
dc.subject Physical Sciences
dc.subject Technology
dc.subject Chemistry, Multidisciplinary
dc.subject Chemistry, Physical
dc.subject Nanoscience & Nanotechnology
dc.subject Materials Science, Multidisciplinary
dc.subject Physics, Applied
dc.subject Physics, Condensed Matter
dc.subject Chemistry
dc.subject Science & Technology - Other Topics
dc.subject Materials Science
dc.subject Physics
dc.subject NANOPARTICLES
dc.subject COMPLEXES
dc.subject NANOCOMPOSITES
dc.subject ARRANGEMENT
dc.subject OXIDATION
dc.subject CATALYSTS
dc.subject POLYMERS
dc.subject CONTRAST
dc.subject CLUSTERS
dc.title Nanoscale Magnetic Arrays through Block Copolymer Templating of Polyoxometalates
dc.type Journal Article
dc.identifier.doi 10.1021/acs.nanolett.3c03825
pubs.issue 7
pubs.begin-page 2165
pubs.volume 24
dc.date.updated 2024-03-21T22:58:09Z
dc.rights.holder Copyright: The authors en
dc.identifier.pmid 38329906 (pubmed)
pubs.author-url https://pubs.acs.org/doi/10.1021/acs.nanolett.3c03825
pubs.end-page 2174
pubs.publication-status Published
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype rapid-communication
pubs.subtype Journal Article
pubs.elements-id 1010717
pubs.org-id Engineering
pubs.org-id Science
pubs.org-id Chemistry
pubs.org-id Chemical and Materials Eng
dc.identifier.eissn 1530-6992
pubs.record-created-at-source-date 2024-03-22
pubs.online-publication-date 2024-02-08


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