skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Observation of transient states during magnetization reversal in a quasicrystal artificial spin ice

Abstract

Artificial spin ices (ASIs) consisting of arrays of magnetic bars are key systems in the study of geometric frustration in magnetic systems. Of particular interest are quasicrystal (QC) ASIs, in which the lack of translational symmetry and the varying coordination number of interacting bars allow for topologically enhanced frustrated magnetization to occur. We have directly observed the formation of magnetic vortexes within the vertices of a QC-ASI as a metastable transient state, during the magnetization reversal process. We observed that the vortexes primarily form in a specific subset of the vertex motif types. Furthermore, micromagnetic simulations show that although these magnetic vortexes result in an increase in the local energy of the vertex before the magnetization of the bars reverses to align with the applied magnetic field, the overall energy increase is lower than the higher energy motif configurations that would result from reversal of the magnetization in the connecting bar.

Authors:
 [1];  [2];  [3];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  2. College of DuPage, Glen Ellyn, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
OSTI Identifier:
1475561
Alternate Identifier(s):
OSTI ID: 1473747
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 9; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Brajuskovic, V., Addi, A., Phatak, C., and Petford-Long, A. K. Observation of transient states during magnetization reversal in a quasicrystal artificial spin ice. United States: N. p., 2018. Web. https://doi.org/10.1103/PhysRevB.98.094424.
Brajuskovic, V., Addi, A., Phatak, C., & Petford-Long, A. K. Observation of transient states during magnetization reversal in a quasicrystal artificial spin ice. United States. https://doi.org/10.1103/PhysRevB.98.094424
Brajuskovic, V., Addi, A., Phatak, C., and Petford-Long, A. K. Tue . "Observation of transient states during magnetization reversal in a quasicrystal artificial spin ice". United States. https://doi.org/10.1103/PhysRevB.98.094424. https://www.osti.gov/servlets/purl/1475561.
@article{osti_1475561,
title = {Observation of transient states during magnetization reversal in a quasicrystal artificial spin ice},
author = {Brajuskovic, V. and Addi, A. and Phatak, C. and Petford-Long, A. K.},
abstractNote = {Artificial spin ices (ASIs) consisting of arrays of magnetic bars are key systems in the study of geometric frustration in magnetic systems. Of particular interest are quasicrystal (QC) ASIs, in which the lack of translational symmetry and the varying coordination number of interacting bars allow for topologically enhanced frustrated magnetization to occur. We have directly observed the formation of magnetic vortexes within the vertices of a QC-ASI as a metastable transient state, during the magnetization reversal process. We observed that the vortexes primarily form in a specific subset of the vertex motif types. Furthermore, micromagnetic simulations show that although these magnetic vortexes result in an increase in the local energy of the vertex before the magnetization of the bars reverses to align with the applied magnetic field, the overall energy increase is lower than the higher energy motif configurations that would result from reversal of the magnetization in the connecting bar.},
doi = {10.1103/PhysRevB.98.094424},
journal = {Physical Review B},
number = 9,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:

Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

Figures / Tables:

Figure 1 Figure 1: a) A bright field TEM image of a QC ASI. The orange dashed line indicates a direction of high symmetry along the QC ASI and the white dashed line indicates a direction of low symmetry along the QC ASI. b) A closeup view of one of the barsmore » in the QC ASI. The green arrow indicates the direction of magnetization as determined by the direction of the intensity gradient represented by the red arrow. c) A graph showing the intensity as a function of distance along the blue line in b). d) Hysteresis loops for magnetization reversal with the applied field along the high symmetry direction shown with blue triangles and along the low symmetry direction shown with green circles. The black arrows next to each branch of the hysteresis loops indicate the direction of the field sweep.« less

Save / Share:

Works referenced in this record:

Novel dynamical magnetic properties in the spin ice compound Dy 2 Ti 2 O 7
journal, July 2001


Artificial ‘spin ice’ in a geometrically frustrated lattice of nanoscale ferromagnetic islands
journal, January 2006

  • Wang, R. F.; Nisoli, C.; Freitas, R. S.
  • Nature, Vol. 439, Issue 7074
  • DOI: 10.1038/nature04447

Ferromagnetic resonance study of eightfold artificial ferromagnetic quasicrystals
journal, May 2014

  • Bhat, V. S.; Sklenar, J.; Farmer, B.
  • Journal of Applied Physics, Vol. 115, Issue 17
  • DOI: 10.1063/1.4859035

Real-space observation of magnetic excitations and avalanche behavior in artificial quasicrystal lattices
journal, October 2016

  • Brajuskovic, V.; Barrows, F.; Phatak, C.
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep34384

Realization of ground state in artificial kagome spin ice via topological defect-driven magnetic writing
journal, November 2017


Crystallites of magnetic charges in artificial spin ice
journal, August 2013

  • Zhang, Sheng; Gilbert, Ian; Nisoli, Cristiano
  • Nature, Vol. 500, Issue 7464
  • DOI: 10.1038/nature12399

Disorder-independent control of magnetic monopole defect population in artificial spin-ice honeycombs
journal, April 2012


Magnetic reversal of an artificial square ice: dipolar correlation and charge ordering
journal, October 2011


Thermal ground-state ordering and elementary excitations in artificial magnetic square ice
journal, November 2010

  • Morgan, Jason P.; Stein, Aaron; Langridge, Sean
  • Nature Physics, Vol. 7, Issue 1
  • DOI: 10.1038/nphys1853

Artificial ferroic systems: novel functionality from structure, interactions and dynamics
journal, August 2013


Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice
journal, October 2010

  • Mengotti, Elena; Heyderman, Laura J.; Rodríguez, Arantxa Fraile
  • Nature Physics, Vol. 7, Issue 1
  • DOI: 10.1038/nphys1794

Controlled Magnetic Reversal in Permalloy Films Patterned into Artificial Quasicrystals
journal, August 2013


Magnetic interactions and reversal of artificial square spin ices
journal, July 2012


Low temperature and high field regimes of connected kagome artificial spin ice: the role of domain wall topology
journal, July 2016

  • Zeissler, Katharina; Chadha, Megha; Lovell, Edmund
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep30218

Deliberate exotic magnetism via frustration and topology
journal, March 2017

  • Nisoli, Cristiano; Kapaklis, Vassilios; Schiffer, Peter
  • Nature Physics, Vol. 13, Issue 3
  • DOI: 10.1038/nphys4059

Emergent reduced dimensionality by vertex frustration in artificial spin ice
journal, October 2015

  • Gilbert, Ian; Lao, Yuyang; Carrasquillo, Isaac
  • Nature Physics, Vol. 12, Issue 2
  • DOI: 10.1038/nphys3520

Nonstochastic magnetic reversal in artificial quasicrystalline spin ice
journal, May 2014

  • Farmer, B.; Bhat, V. S.; Sklenar, J.
  • Journal of Applied Physics, Vol. 115, Issue 17
  • DOI: 10.1063/1.4869288

Direct imaging of coexisting ordered and frustrated sublattices in artificial ferromagnetic quasicrystals
journal, April 2016


Real and effective thermal equilibrium in artificial square spin ices
journal, January 2013


Unhappy vertices in artificial spin ice: new degeneracies from vertex frustration
journal, April 2013


Magnetic monopoles in spin ice
journal, January 2008

  • Castelnovo, C.; Moessner, R.; Sondhi, S. L.
  • Nature, Vol. 451, Issue 7174
  • DOI: 10.1038/nature06433

Frustration and thermalization in an artificial magnetic quasicrystal
journal, December 2017


Magnetic charge and moment dynamics in artificial kagome spin ice
journal, August 2017


    Works referencing / citing this record:

    Advances in artificial spin ice
    journal, November 2019

    • Skjærvø, Sandra H.; Marrows, Christopher H.; Stamps, Robert L.
    • Nature Reviews Physics, Vol. 2, Issue 1
    • DOI: 10.1038/s42254-019-0118-3

    Elevated effective dimension in tree-like nanomagnetic Cayley structures
    journal, January 2020

    • Saccone, Michael; Hofhuis, Kevin; Bracher, David
    • Nanoscale, Vol. 12, Issue 1
    • DOI: 10.1039/c9nr07510k

    Dipolar Cairo lattice: Geometrical frustration and short-range correlations
    journal, October 2019


      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.