Magnetic anisotropy of vertically aligned α- Fe2O 3 nanowire array

  • Chang Hyun Kim
  • , Hye Jin Chun
  • , Dae Sung Kim
  • , Shin Young Kim
  • , Jeunghee Park
  • , Je Yong Moon
  • , Gangho Lee
  • , Jungbum Yoon
  • , Younghun Jo
  • , Myung Hwa Jung
  • , Seung Il Jung
  • , Cheol Jin Lee

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Vertically aligned Fe2 O3 nanowire arrays were synthesized by the thermal oxidation of Fe foil. They consist of single-crystalline rhombohedral α- Fe2 O3 nanocrystals grown along the [11 2- 0] direction. Most of the nanowires have a sharp tip (diameter=50 nm) and beltlike base. The magnetization measurement reveals a Morin temperature of 125 K and unique magnetic anisotropy due to the easy axis of the magnetocrystalline anisotropy perpendicular to the nanowire axis.

Original languageEnglish
Article number223103
JournalApplied Physics Letters
Volume89
Issue number22
DOIs
StatePublished - 2006

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