Real-space observation of magnetic excitations and avalanche behavior in artificial quasicrystal lattices

Brajuskovic, V.; Barrows, F.; Phatak, C.; Petford-Long, A. K.

doi:10.1038/srep34384

Title: Real-space observation of magnetic excitations and avalanche behavior in artificial quasicrystal lattices

Journal Article · Mon Oct 03 00:00:00 EDT 2016 · Scientific Reports

DOI:https://doi.org/10.1038/srep34384· OSTI ID:1335879

Brajuskovic, V. ^[1]; Barrows, F. ^[1]; Phatak, C. ^[2]; Petford-Long, A. K. ^[1]

Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States)
Argonne National Lab. (ANL), Lemont, IL (United States)

Artificial spin ice lattices have emerged as model systems for studying magnetic frustration in recent years. Most work to date has looked at periodic artificial spin ice lattices. In this paper, we observe frustration effects in quasicrystal artificial spin ice lattices that lack translational symmetry and contain vertices with different numbers of interacting elements. We find that as the lattice state changes following demagnetizing and annealing, specific vertex motifs retain low-energy configurations, which excites other motifs into higher energy configurations. In addition, we find that unlike the magnetization reversal process for periodic artificial spin ice lattices, which occurs through 1D avalanches, quasicrystal lattices undergo reversal through a dendritic 2D avalanche mechanism.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences and Engineering Division

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 1335879

Journal Information:: Scientific Reports, Vol. 6; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 20 works

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Frustration and thermalization in an artificial magnetic quasicrystal Shi, Dong; Budrikis, Zoe; Stein, Aaron Nature Physics, Vol. 14, Issue 3 https://doi.org/10.1038/s41567-017-0009-4	journal	December 2017
Advances in artificial spin ice Skjærvø, Sandra H.; Marrows, Christopher H.; Stamps, Robert L. Nature Reviews Physics, Vol. 2, Issue 1 https://doi.org/10.1038/s42254-019-0118-3	journal	November 2019
Magnetization reversal in kagome artificial spin ice studied by first-order reversal curves Sun, L.; Zhou, C.; Liang, J. H. Physical Review B, Vol. 96, Issue 14 https://doi.org/10.1103/physrevb.96.144409	journal	October 2017
Magnetization reversal in Kagome artificial spin ice studied by first-order reversal curves Sun, L.; Zhou, C.; Liang, J. H. arXiv https://doi.org/10.48550/arxiv.1709.05656	text	January 2017
Angular Dependent Magnetization Dynamics with Mirror-symmetric Excitations in Artificial Quasicrystalline Nanomagnet Lattices Bhat, V. S.; Grundler, D. arXiv https://doi.org/10.48550/arxiv.1804.10630	text	January 2018
Frustration and thermalisation in an artificial magnetic quasicrystal Shi, Dong; Budrikis, Zoe; Stein, Aaron arXiv https://doi.org/10.48550/arxiv.1703.04792	text	January 2017
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