M. Garganourakis, V. Scagnoli, S. W. Huang, U. Staub, H. Wadati, M. Nakamura, V. A. Guzenko, M. Kawasaki, Y. Tokura
The effect of x-rays on an orbital and charge ordered epitaxial film of a Pr$_{0.5}$Ca$_{0.5}$MnO$_{3}$ is presented. As the film is exposed to x-rays, the antiferromagnetic response increases and concomitantly the conductivity of the film improve. These results are discussed in terms of a persistent x-ray induced doping, leading to a modification of the magnetic structure. This effect allows writing electronic and magnetic domains in the film and represents a novel way of manipulating magnetism.
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http://arxiv.org/abs/1205.6922
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