| Sr掺杂Eu1-xSrxMnO3体系的磁相变以及输运特性研究 |
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| 引用本文： | 张佳佳,曹世勋,袁淑娟,李哲,康保娟,张金仓.Sr掺杂Eu1-xSrxMnO3体系的磁相变以及输运特性研究[J].物理学报,2010,59(9):6494-6500. |
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| 作者姓名： | 张佳佳 曹世勋 袁淑娟 李哲 康保娟 张金仓 |
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| 作者单位： | 上海大学理学院物理系,上海 200444 |
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| 基金项目： | 国家自然科学基金(批准号:50932003, 10674092, 10774097),高等学校博士学科点专项科研基金(批准号:20093108120006),上海市教育委员会科技创新基金重点项目(批准号:09ZZ95)和上海市科学技术委员会 (批准号:08DJ1400202,10ZR1411000)资助的课题. |
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| 摘 要： | 对Eu1-xSrxMnO3 (ESMO, x=0—1)体系的结构和磁性进行了系统的研究,结果表明Sr的掺入使EuMnO3反铁磁母体的磁结构发生巨大的变化.通过磁化和电输运测量,深入探讨了高掺杂浓度Eu0.4Sr0.6MnO3和Eu0.3Sr0.7MnO3关键词：
1-xSrxMnO3体系')" href="#">Eu1-xSrxMnO3体系
Sr掺杂
可变程跳跃模型
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| 关 键 词： | Eu1-xSrxMnO3体系 Sr掺杂 可变程跳跃模型 |
| 收稿时间： | 2009-11-16 |
Magnetic phase transition and electrical transport properties of the Sr-doped Eu1-x Srx MnO3 system* |
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| Zhang Jia-Jia,Cao Shi-Xun,Yuan Shu-Juan,Li Zhe,Kang Bao-Juan,Zhang Jin-Cang.Magnetic phase transition and electrical transport properties of the Sr-doped Eu1-x Srx MnO3 system*[J].Acta Physica Sinica,2010,59(9):6494-6500. |
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| Authors: | Zhang Jia-Jia Cao Shi-Xun Yuan Shu-Juan Li Zhe Kang Bao-Juan Zhang Jin-Cang |
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| Institution: | Department of Physics, Shanghai University, Shanghai 200444, China;Department of Physics, Shanghai University, Shanghai 200444, China;Department of Physics, Shanghai University, Shanghai 200444, China;Department of Physics, Shanghai University, Shanghai 200444, China;Department of Physics, Shanghai University, Shanghai 200444, China;Department of Physics, Shanghai University, Shanghai 200444, China |
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| Abstract: | The structure and magnetic properties of the Eu1-xSrxMnO3 (ESMO x=0—1) system have been systematically studied. The results indicate that the substitution of Sr for Eu can greatly change the magnetic properties of antiferromagnetic EuMnO3 matrix. In the case of high doping compounds (Eu0.4Sr0.6MnO3 and Eu0.3Sr0.7MnO3), the abnormal magnetic and electrical properties result from the competition between their being ferromagnetic and antiferromagnetic. At low temperature, the conducting behavior of the Eu0.4Sr0.6MnO3 and Eu0.3Sr0.7MnO3 are well fitted by the Mott variable range hopping (VRH) model. |
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| Keywords: | Eu1-xSrxMnO3 system Sr-doped variable range hopping |
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