Effects of Geometry on Magnetic Reversal in Elongated Nanomagnets
ORAL
Abstract
Artificial spin ice systems consist of two-dimensional arrays of interacting nanomagnets and offer a rich platform for visualizing and studying collective magnetic behavior. In this study, we use micromagnetic simulations to investigate how the end geometry of elongated nanomagnets, arranged in a square lattice, influences magnetic reversal. By systematically altering the island shape from rectangular to elliptical, we analyze the hysteresis loops of both non-interacting and interacting elements. Our results show that modifying the island geometry impacts the reversal process due to an interplay between internal and external degrees of freedom. These findings provide a roadmap for understanding how nanomagnet geometry influences magnetic behavior and for tuning the island shape to achieve desired magnetic properties.
*Work at Princeton was funded by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Grant No. DE-SC0020162 and DE-SC0024940. Work by O.H. at Argonne National Laboratory was funded by the US Department of Energy Basic Energy Sciences Division of Materials Sciences and Engineering.
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Presenters
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Nanny Henreitta Strandqvist
- Princeton University