TY - JOUR
T1 - Geometrical Frustration and Planar Triangular Antiferromagnetism in Quasi-Three-Dimensional Artificial Spin Architecture
AU - Farhan, Alan
AU - Saccone, Michael
AU - Petersen, Charlotte
AU - Dhuey, Scott
AU - Hofhuis, Kevin
AU - Mansell, Rhodri
AU - Chopdekar, Rajesh V.
AU - Scholl, Andreas
AU - Lippert, Thomas
AU - van Dijken, Sebastiaan
PY - 2020/12/30
Y1 - 2020/12/30
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevLett.125.267203
DO - 10.1103/PhysRevLett.125.267203
M3 - Article
SN - 0031-9007
VL - 125
JO - Physical Review Letters
JF - Physical Review Letters
IS - 26
M1 - 267203
ER -