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 journalArticle

26 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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