High-throughput screening of ultraviolet-visible magnetooptical properties of spinel ferrite (Zn,Co)Fe2O4 solid solution epitaxial film by a composition-spread approach

Yosuke Iwasaki, Tomoteru Fukumura, Hisamichi Kimura, Akira Ohkubo, Tetsuya Hasegawa, Yasushi Hirose, Takayuki Makino, Kazunori Ueno, Masashi Kawasaki

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5 Citations (Scopus)

Abstract

Spinel ferrite Zn1-xCoxFe2O4 (0 ≤ x ≤ 1) (111) composition-spread thin film was epitaxially grown on an MgAl 2O4(111) substrate by combinatorial pulsed laser deposition. Sequential deposition of the two end-compounds with monolayer-period led to the formation of solid solution with addressable composition. Point-by-point ultraviolet-visible magnetic circular dichroism and Faraday rotation angle spectra showed a significant variation with x, and the latter spectra combined with absorption spectra led to the rapid evaluation of magnetooptical performance factor as functions of x and photon energy. A significant enhancement of ultraviolet magnetooptical effect was observed by substituting a small amount of Zn (≤30 at. %) for Co in CoFe 2O4.

Original languageEnglish
Article number103001
JournalApplied Physics Express
Volume3
Issue number10
DOIs
Publication statusPublished - 2010 Oct

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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