Coupled macrospins: Mode dynamics in symmetric and asymmetric vertices

Wonbae Bang, Matthias B. Jungfleisch, Federico Montoncello, Barry W. Farmer, Pavel N. Lapa, Axel Hoffmann, Loris Giovannini, Lance E. De Long, John B. Ketterson

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We report the microwave response of symmetric and asymmetric threefold clusters with nearly contacting segments that can serve as the node in a Kagome artificial spin ice lattice. The structures are patterned on a coplanar waveguide and consist of elongated and nearly-contacting ellipses with uniform thickness. Branches of the ferromagnetic resonance spectra display mode softening that correlates well with the calculations, whereas agreement between the measured and simulated static magnetization is more qualitative.

Original languageEnglish
Article number056020
JournalAIP Advances
Volume8
Issue number5
DOIs
StatePublished - May 1 2018

Bibliographical note

Publisher Copyright:
© 2017 Author(s).

Funding

Work at Northwestern was supported by the NSF under grant DMR 1507058. Work at the University of Kentucky was supported by the NSF under grant DMR 1506979. Work at Argonne was supported by the U.S. Department of Energy, Office of Science, Materials Science and Engineering Division. Use was made of the Center for Nanoscale Materials, an Office of Science user facility, which is supported by DOE, Office of Science, Basic Energy Science under Contract No. DE-AC02-06CH11357.

FundersFunder number
Department of Energy Basic Energy Science Program
Materials Science and Engineering Division
National Science Foundation Arctic Social Science ProgramDMR 1507058, 1507058, DMR 1506979
U.S. Department of Energy EPSCoR
Division of Materials Research1506979
Office of Science Programs
University of Kentucky
Norsk Sykepleierforbund

    ASJC Scopus subject areas

    • General Physics and Astronomy

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