Magnetic response of brickwork artificial spin ice

Jungsik Park, Brian L. Le, Joseph Sklenar, Gia Wei Chern, Justin D. Watts, Peter Schiffer

Research output: Contribution to journalArticlepeer-review

Abstract

We have investigated the response of brickwork artificial spin ice to an applied in-plane magnetic field through magnetic force microscopy, magnetotransport measurements, and micromagnetic simulations. We find that, by sweeping an in-plane applied field from saturation to zero in a narrow range of angles near one of the principal axes of the lattice, the moments of the system fall into an antiferromagnetic ground state in both connected and disconnected structures. Magnetotransport measurements of the connected lattice exhibit unique signatures of this ground state. Also, modeling of the magnetotransport demonstrates that the signal arises at vertex regions in the structure, confirming behavior that was previously seen in transport studies of kagome artificial spin ice.

Original languageEnglish (US)
Article number024436
JournalPhysical Review B
Volume96
Issue number2
DOIs
StatePublished - Jul 24 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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