Geometrical Frustration and Planar Triangular Antiferromagnetism in Quasi-Three-Dimensional Artificial Spin Architecture
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2020-12-30
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en
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6
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Physical Review Letters, Volume 125, issue 26
Abstract
We present a realization of highly frustrated planar triangular antiferromagnetism achieved in a quasi-three-dimensional artificial spin system consisting of monodomain Ising-type nanomagnets lithographically arranged onto a deep-etched silicon substrate. We demonstrate how the three-dimensional spin architecture results in the first direct observation of long-range ordered planar triangular antiferromagnetism, in addition to a highly disordered phase with short-range correlations, once competing interactions are perfectly tuned. Our work demonstrates how escaping two-dimensional restrictions can lead to new types of magnetically frustrated metamaterials.Description
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Farhan, A, Saccone, M, Petersen, C, Dhuey, S, Hofhuis, K, Mansell, R, Chopdekar, R V, Scholl, A, Lippert, T & van Dijken, S 2020, ' Geometrical Frustration and Planar Triangular Antiferromagnetism in Quasi-Three-Dimensional Artificial Spin Architecture ', Physical Review Letters, vol. 125, no. 26, 267203 . https://doi.org/10.1103/PhysRevLett.125.267203
