Modal frustration and periodicity breaking in artificial spin ice. / Puttock, Robb ; Manzin, A.; Neu, Volker; Garcia-Sanchez, Felipe; Scarioni, Alexander Fernandez; Schumacher, Hans W.; Kazakova, O.

In: Small, 28.09.2020.

Research output: Contribution to journalArticle

E-pub ahead of print

Documents

  • Accepted Manuscript

    Accepted author manuscript, 1.15 MB, PDF document

  • Robb Puttock
  • A. Manzin
  • Volker Neu
  • Felipe Garcia-Sanchez
  • Alexander Fernandez Scarioni
  • Hans W. Schumacher
  • O Kazakova

Abstract

Here an artificial spin ice (ASI) lattice is introduced that exhibits unique Ising and non-Ising behavior under specific field switching protocols because of the inclusion of coupled nanomagnets into the unit cell. In the Ising regime, a magnetic switching mechanism that generates a uni- or bimodal distribution of states dependent on the alignment of the field is demonstrated with respect to the lattice unit cell. In addition, a method for generating a plethora of randomly distributed energy states across the lattice, consisting of Ising and Landau states, is investigated through magnetic force microscopy and micromagnetic modeling. We demonstrate that the dispersed energy distribution across the lattice is a result of the intrinsic design and can be finely tuned through control of the incident angle of a critical field. The present manuscript explores a complex frustrated environment beyond the 16-vertex Ising model for the development of novel logic-based technologies.
Original languageEnglish
Article number2003141
JournalSmall
Early online date28 Sep 2020
DOIs
Publication statusE-pub ahead of print - 28 Sep 2020
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

ID: 38726959