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| X-ray Photoelectron Spectroscopy of Double Perovskite Pr2NiMnO6 |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:double perovskite X-ray photoelectron spectroscopy valence state ferromagnetism superexchange interaction |
| Author | Institution |
| 郑光虎，石磊，刘海峰，郭宇桥 |
1.中国科学技术大学合肥微尺度物质科学国家实验室;2.西南科技大学分析测试中心 |
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| Abstract: |
| Double perovskite Pr2NiMnO6 was prepared by solid state reaction.Single phase of Pr2NiMnO6 was concluded by X-ray diffraction.The valence state of Ni/Mn and the ferromagnetic behavior were analyzed by X-ray photoelectron spectroscopy(XPS) and magnetism measurement system，respectively.The results indicated that Ni/Mn are mainly divalent/tetravalent and the strong ferromagnetism of Pr2NiMnO6 obtained by magnetic measurements at low temperature is attributed to predominant Ni2+-O-Mn4+ rather than Ni3+-O-Mn3+ ferromagnetic superexchange interaction.This study provides an important clue for the exploration of the magnetism origin of La2NiMnO6. |
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