Magnetic quasidomain structures in Ru-doped La0.6Sr0.4MnO3 thin films

Konoto, M.; Yamada, H.; Koike, K.; Akoh, H.; Kawasaki, M.; Tokura, Y.
December 2008
Applied Physics Letters;12/22/2008, Vol. 93 Issue 25, p252503
Academic Journal
We investigated magnetic composite domain structures in Ru-doped La0.6Sr0.4MnO3 thin films epitaxially grown on SrTiO3 (001) substrates with use of a high-precision spin-imaging technique. Quasidomains composed of numerous fine domains were clearly discerned in high-resolution images, indicating magnetic anisotropy with multiple oblique easy axes with respect to the film plane. The impact of the Ru doping on the change in magnetic anisotropy was revealed by quantitative analysis of the composite domain structures.


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