Temperature-dependent collective magnetization reversal in a network of ferromagnetic nanowires

Sergi Lendínez, John E. Pearson, Axel Hoffmann, Valentyn Novosad, M. Benjamin Jungfleisch

Research output: Contribution to journalArticlepeer-review

Abstract

The collective behavior of geometrically frustrated magnetization in connected networks of ferromagnetic nanowires, known as artificial spin ice, leads to complex magnetotransport behavior in those structures. Here, we present temperature-and current-dependent magnetotransport studies on a connected square artificial spin-ice system and correlate our observations to micromagnetic simulations. We find that the field at which the lattice magnetization collectively switches increases as the temperature is lowered. Our experimental findings highlight the importance of the global and local temperatures for the onset of a collective magnetization reversal in the connected system. These studies may also provide useful insights into novel storage concepts and applications in neuromorphic computing.

Original languageEnglish (US)
Article number025222
JournalAIP Advances
Volume11
Issue number2
DOIs
StatePublished - Feb 1 2021

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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