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research article

Magnetization dynamics of topological defects and the spin solid in a kagome artificial spin ice

Bhat, V. S.
•
Heimbach, F.
•
Stasinopoulos, I.
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2016
Physical Review B

We report broadband spin-wave spectroscopy on kagome artificial spin ice (ASI) made of large arrays of interconnected Ni 80 Fe 20 nanobars. Spectra taken in saturated and disordered states exhibit a series of resonances with characteristic magnetic field dependencies. Making use of micromagnetic simulations, we identify resonances that reflect the spin-solid-state and monopole-antimonopole pairs on Dirac strings. The latter resonances allow for the generation of highly charged vertices in ASIs via microwave-assisted switching. Our findings open further perspectives for fundamental studies on ASIs and their usage in reprogrammable magnonics

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Type
research article
DOI
10.1103/PhysRevB.93.140401
Web of Science ID

WOS:000373567300002

Author(s)
Bhat, V. S.
•
Heimbach, F.
•
Stasinopoulos, I.
•
Grundler, D.
Date Issued

2016

Publisher

Amer Physical Soc

Published in
Physical Review B
Volume

93

Issue

14

Article Number

140401

Subjects

magnonics

•

artificial spin ice

•

ferromagnetic resonance

•

spin dynamics

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMGN  
Available on Infoscience
June 14, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/126628
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