Perpendicular-anisotropy artificial spin ice with spontaneous ordering: a platform for neuromorphic computing with flexible timescales
Arrays of coupled nanomagnets have wide-ranging fundamental and practical applications in artificial spin ices, neuromorphic computing and spintronics. However, lacking in these fields are nanomagnets with perpendicular magnetic anisotropy with sufficient magnetostatic interaction. This would not on...
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Main Authors | , , , , , , |
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Format | Journal Article |
Language | English |
Published |
22.08.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Arrays of coupled nanomagnets have wide-ranging fundamental and practical
applications in artificial spin ices, neuromorphic computing and spintronics.
However, lacking in these fields are nanomagnets with perpendicular magnetic
anisotropy with sufficient magnetostatic interaction. This would not only open
up new possibilities for artificial spin ice geometries but also enable novel
coupling methods for applications. Here we demonstrate a method to engineer the
energy landscape of artificial spin lattices with perpendicular magnetic
anisotropy. With this, we are able to realize for the first time
magnetostatically-coupled 2D lattices of out-of-plane Ising spins that
spontaneously order at room temperature on timescales that can be precisely
engineered. We show how this property, together with straightforward electrical
interfacing, make this system a promising platform for reservoir computing. Our
results open the way to investigate the thermodynamics of out-of-plane
magnetostatically coupled nanomagnet arrays with novel spin ice geometries, as
well as to exploit such nanomagnet arrays in unconventional computing, taking
advantage of the adjustable temporal dynamics and strong coupling between
nanomagnets. |
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DOI: | 10.48550/arxiv.2408.12182 |