Photo-induced magnetism in perovskite-type Mn oxides investigated by using combinatorial methodology

H. Sugaya, S. Okazaki, T. Hasegawa, N. Okazaki, J. Nishimura, T. Fukumura, M. Kawasaki, H. Koinuma

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

We have investigated local magnetic properties of composition-spread Nd 1-x Sr x MnO 3 (NSMO) films under irradiation, using a scanning SQUID microscope. As a result, we found that the stray field generated from domain boundaries was substantially enhanced by laser irradiation (λ = 532 nm), particularly in the ferromagnetic metal region at x < 0.5. The enhanced filed was maintained, at least, for several hours even after the interception of laser beam. This suggests that the presently observed photo-induced magnetism results from magnetic phase transition triggered by photons.

Original languageEnglish
Pages (from-to)68-72
Number of pages5
JournalApplied Surface Science
Volume223
Issue number1-3
DOIs
Publication statusPublished - 2004 Feb 15

Keywords

  • Combinatorial technique
  • Composition-spread thin film
  • Manganese oxide
  • Scanning SQUID microscope
  • Scanning microwave microscope

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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