Observation of ice-rule violation and monopole dynamics via edge nucleation of domain walls in artificial spin ice lattice

In a patterned Co honeycomb spin ice structure, we show that violation in the ice-rule or magnetic monopoles, can be observed during a magnetization reversal process in 430 Oe≤H≤760 Oe magnetic field (H) range. The monopoles are shown to originate from the nucleation of domain walls at the edges, an...

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Bibliographic Details
Main Authors: Krishnia, Sachin, Purnama, Indra, Lew, Wen Siang
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2017
Subjects:
Online Access:https://hdl.handle.net/10356/85725
http://hdl.handle.net/10220/43811