| Original Articles |
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Influence of Gd Doping at A Site upon the Magnetic Structure of La0.7-xGdxSr0.3MnO3 Systems |
| PENG Zhen-Sheng1;LIU Ning1,2;CAI Zhi-Rang1;GUO Huan-Yin1;TONG Wei2;ZHANG Chang-Jing2;ZHANG Yu-Heng2 |
| 1Department of Physics, Suzhou Normal College, Suzhou 234000
2Structure Research Laboratory, University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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PENG Zhen-Sheng, LIU Ning, CAI Zhi-Rang et al 2003 Chin. Phys. Lett. 20 564-567 |
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Abstract We investigated the magnetism of systems La0.7-xGdxSr0.3MnO3 (x = 0.00, 0.10, 0.15, 0.20, 0.30, 0.40, 0.50, 0.60, 0.70) by M-T curves, M-H curves, and electron-spin-resonance (ESR) spectra. The experimental results indicate that the system is in a ferromagnetic long-range order at low-doping level; the samples of x = 0.30 and 0.40 show cluster-spin glass behaviour; and the antiferromagnetic characters are observed at ≥ 0.50. For the samples of x = 0.30 and 0.40, the ESR spectra demonstrate that the phase separation occurs above the Curie temperature.
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| Keywords:
75.30.-m
75.30.Cr
75.50.Ee
76.30.-v
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Published: 01 April 2003
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| PACS: |
75.30.-m
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(Intrinsic properties of magnetically ordered materials)
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75.30.Cr
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(Saturation moments and magnetic susceptibilities)
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75.50.Ee
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(Antiferromagnetics)
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76.30.-v
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(Electron paramagnetic resonance and relaxation)
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