Pancakelike Ising domains and charge-ordered superlattice domains in LuFe2 O4

S. Park, Y. Horibe, Y. J. Choi, C. L. Zhang, S. W. Cheong, Weida Wu

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We report magnetic and superlattice imaging of ferrimagnetic bilayered LuFe2 O4 with strong uniaxial magnetic anisotropy. Magnetization reversal is imaged in magnetic fields up to 8 T at several temperatures below TN (∼230 K) and charge-ordered superlattice domains are imaged at 92 K. We observed random packing of irregular pancakelike magnetic domains (∼100 nm×30 nm) and charge-ordered superlattice domains with similar shape (∼30 nm×6 nm). The magnetic domain structure shows a strong memory effect in magnetization reversal. Our results are consistent with a spin-charge cross-coupling mechanism in LuFe2 O4.

Original languageEnglish
Article number180401
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number18
DOIs
Publication statusPublished - 2009 May 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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