Domain Wall Patterning and Giant Response Functions in Ferrimagnetic Spinels

Lazar L. Kish, Alex Thaler, Minseong Lee, Alexander V. Zakrzewski, Dalmau Reig-i-Plessis, Brian A. Wolin, Xu Wang, Kenneth C. Littrell, Raffi Budakian, Haidong Zhou, Zheng Gai, Matthias D. Frontzek, Vivien S. Zapf, Adam A. Aczel, Lisa DeBeer-Schmitt, Gregory J. MacDougall

Research output: Contribution to journalArticlepeer-review

Abstract

The manipulation of mesoscale domain wall phenomena has emerged as a powerful strategy for designing ferroelectric responses in functional devices, but its full potential is not yet realized in the field of magnetism. This work shows a direct connection between magnetic response functions in mechanically strained samples of Mn3O4 and MnV2O4 and stripe-like patternings of the bulk magnetization which appear below known magnetostructural transitions. Building off previous magnetic force microscopy data, a small-angle neutron scattering is used to show that these patterns represent distinctive magnetic phenomena which extend throughout the bulk of two separate materials, and further are controllable via applied magnetic field and mechanical stress. These results are unambiguously connected to the anomalously large magnetoelastic and magnetodielectric response functions reported for these materials, by performing susceptibility measurements on the same crystals and directly correlating local and macroscopic data.

Original languageEnglish (US)
Article number2101402
JournalAdvanced Science
Volume8
Issue number23
DOIs
StatePublished - Dec 8 2021

Keywords

  • domain walls
  • magnetodielectrics
  • magnetoelastics
  • magnetostructural transitions
  • small-angle neutron scattering

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Biochemistry, Genetics and Molecular Biology (miscellaneous)
  • Engineering(all)
  • Physics and Astronomy(all)

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