@article{fd8568e976764063931e27f428d138fa,
title = "Polymer Micelle Directed Magnetic Cargo Assemblies Towards Spin-wave Manipulation",
abstract = "Spin-wave based technologies that use collective oscillation of electrons termed magnons have been proposed for future computing landscapes due to their low energy consumption and high data transfer speeds. Magnonic crystals, materials with magnetic properties periodically varied in space, are central to such technologies. However, they are currently limited by the lithography techniques used for the magnetic patterning. To address this issue, bottom-up self-assembly using polymer templates to order magnetic cargo is presented. In this work, block copolymer micelles are used as templates to direct the organization of polyoxometalate (POM) molecules into organized assemblies. The structural organization of these assemblies is evaluated using microscopy and scattering techniques. The organized POM assemblies are demonstrated to modulate spin-waves excited in permalloy thin films. This work demonstrates the first use of a bottom-up approach to realize the fabrication of a magnonic assembly at the nanoscale. It further paves the way to achieve magnon-mediated self-assembled computing architectures.",
keywords = "block copolymers, GISAXS, magnons, polyoxometalates, spin-waves",
author = "Sesha Manuguri and {van der Heijden}, {Nadine J.} and Nam, {Seong J.} and Narasimhan, {Badri Narayanan} and Bohang Wei and {Cabero Z.}, {Marco A.} and Haiming Yu and Simon Granville and McGillivray, {Duncan J.} and Brothers, {Penelope J.} and Williams, {David E.} and Jenny Malmstr{\"o}m",
note = "Funding Information: The MacDiarmid Institute for Advanced Materials and Nanotechnology is acknowledged for their support of this research and for providing a Ph.D. scholarship for S.M., and J.M additionally gratefully acknowledges financial support by the Marsden Fund Council and the Rutherford Discovery Fellowship, funding managed by the Royal Society Te Apārangi. S.M. acknowledges the University of Auckland doctoral scholarship extension scheme. S.M and J.M acknowledge the generous synchrotron travel support from Royal Society of New Zealand. The authors acknowledge the support of Dr. Adrian Turner and Dr. Yiran An for their valuable inputs on TEM and AFM microcopy. The authors thank Dr. Jilei Chen for his engaging discussions on spin‐wave experiments. The authors also thank Daniel Clyde for his help on UV and IR characterization of FeW This research was partly undertaken on the SAXS/WAXS beamline at the Australian Synchrotron, Victoria, Australia. The authors acknowledge valuable discussions and generous support of Dr. Stephen Muddie at the Australian synchrotron. 30 72. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",
year = "2021",
month = aug,
day = "9",
doi = "10.1002/admi.202100455",
language = "English",
volume = "8",
journal = "Advanced Materials Interfaces",
issn = "2196-7350",
publisher = "Wiley-Blackwell",
number = "15",
}
