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 language | English |
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Pages (from-to) | 68-72 |
Number of pages | 5 |
Journal | Applied Surface Science |
Volume | 223 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 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