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Effect of Dy doping on magnetism of La |
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| Authors: | Ning Liu Guoqing Yan Guang Zhu Huanyin Guo |
| Affiliation: | 1. College of Science, Anhui Science and Technology University, Fengyang 233100, China; Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base), Suzhou College, Suzhou 234000, China 2. Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base), Suzhou College, Suzhou 234000, China; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China 3. Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base), Suzhou College, Suzhou 234000, China |
| Abstract: | The effect of Dy doping on magnetism of La0.7Sr0.3CoO3 system was studied through the measurements of M-T curves and M-H curves. The results show that with Dy content increasing, T C decreases, M weakens, the coercive force strengthens, and the samples exhibit the abnormal phenomenon that M increases continuously with T decreasing in low temperature range. Research indicates that the variation of magnetism in the system comes from the changes of lattice parameters and magnetic environment caused by Dy doping and from the spin-state transition of Co ions induced by Dy ions. |
| Keywords: | magnetic structure cluster glass state spin-state transition |
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