Hydrothermal synthesis, structure and magnetic properties of Ru doped La0.5Sr0.5MnO3
Ling-Ling Wang1, Jia-Nan Chu1,2,3, Xuan Zhang1,4, Yong-Hui Ma1,2,3, Qiu-Cheng Ji1,2, Wei Li5, Hui Zhang1,2, Gang Mu1,2(), Xiao-Ming Xie1,2,3
1. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China 2. CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai 200050, China 3. University of Chinese Academy of Sciences, Beijing 100049, China 4. Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, China 5. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
Synthesis, structure and magnetic properties of Ru doped perovskite structured manganite La0.5Sr0.5MnO3 were investigated experimentally. A hydrothermal method was used for the preparation of the samples. A high-temperature annealing process was also employed to make a comparison. A slightly enhancement of the unit cell volume was observed with the increase of Ru concentration. Scanning electron microscopy shows that the materials are made up of cube-shaped particles with dimension of several micrometers. Importantly, it is found that both the Curie temperature TC and saturation moment can be reduced by Ru doping. The value of coercive field is not affected by the introduction of Ru.
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