Synthesis of natural superlattice structure in the binary ZnO-Fe 2O3 system by microwave irradiation

Satomi Katayose, Takamichi Miyazaki, Yamato Hayashi, Hirotsugu Takizawa

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Homologous compounds, Fe2O3(ZnO)m, with the modulated natural superlattice structure were obtained within a short period by solid state reaction of component oxides under 2.45GHz microwave irradiation. TEM observation revealed that two types of superlattice structures were observed in different Fe concentration; one is longitudinal superlattice structure in a rod shaped precipitation at high Fe concentration, and the other is modulated structure showing zigzag shape at low Fe concentration. It is conclude that the non-equilibrium nature of microwave selective heating, as well as rapid heating and quenching effects, plays a key role to form the superstructure. The obtained products exhibit ferromagnetic behavior with the Curie temperature above 300K.

Original languageEnglish
Pages (from-to)387-389
Number of pages3
JournalJournal of the Ceramic Society of Japan
Volume118
Issue number1377
DOIs
Publication statusPublished - 2010 May

Keywords

  • Diluted magnetic Semiconductors
  • Homologous compounds
  • Microwave synthesis
  • Natural superlattice structure
  • Zinc oxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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