| Phase Separation and Magnetoresistance in Nd0.52Sr0.48MnO3 |
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| 作者姓名： | 李志青 姜恩永 刘晖 李养贤 于夏 |
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| 作者单位： | [1]DepartmentofAppliedPhysics,SchoolofScience,TianjinUniversity,Tianjin300072 [2]KeyLaboratoryforAdvancedCeramicsandMachiningTechnologyofMinistryEducation,TianjinUniversity,Tianjin300072 [3]SchoolofMaterialScienceandEngineering,HebeiUniversityofTechnology,Tianjin300130 [4]CentralLaboratory,NankaiUniversity，Tianjin300071 |
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| 摘 要： | Polycrystalline Nd0.52Sr0.48MnO3 ceramic is prepared by a Pechini process. Its electron spin resonance spectra,magnetic and transport properties have been investigated experimentally. At temperature above 270K, the compound is paramagnetic insulator, while in temperature between 160 K and 270 K, the compound is separated into a paramagnetic insulator and a ferromagnetic metal coexisting state. Below 160 K, the ferromagnetic phase coexists with an antiferromagnetic state, but the ferromagnetic phase remains to be dominant. This makes the compound exhibiting a metallic character even at temperature far below TN.
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| 关 键 词： | 相位分离 磁致电阻 Nd0.52Sr0.48MnO3 钕锶锰氧化物 电子自旋共振光谱 磁性材料 输运性质 |
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