Abstract Structural and magnetic properties of polycrystalline bulk Er1-xLaxFeO3 (x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0) samples prepared by co-precipitation technique have been investigated. Rietveld refined x-ray diffraction patterns confirm a single phase orthorhombic crystal structure of all the samples. Substitution of La at Er-site significantly modify the magnetic properties of parent ErFeO3. The temperature-dependent magnetization study reveals that, all the samples exhibit antiferromagnetic ordering throughout the temperature range studied. All the samples become fully antiferromagnetic ~81 K with the lowest value of net magnetization. Erbium moments order at ~4.1 K. ErFeO3 sample exhibits compensation temperature TCOMP at ~48 K and spin reorientation TSR phenomena in the temperature range of ~85–98 K. The highest value of coercivity with nearly saturated M−H loops is observed at 2 K indicating the existence of weak ferromagnetic order due to the magnetic interaction between the Er3+ and Fe3+-ions.

中文翻译：

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La取代对ErFeO3正铁氧体磁性能的影响

摘要 研究了通过共沉淀技术制备的多晶块体 Er1-xLaxFeO3 (x = 0.0、0.2、0.4、0.6、0.8 和 1.0) 样品的结构和磁性能。Rietveld 精制的 X 射线衍射图证实了所有样品的单相正交晶体结构。在 Er 位取代 La 显着改变了母体 ErFeO3 的磁性能。温度相关磁化研究表明，所有样品在整个研究温度范围内都表现出反铁磁有序。所有样品都变得完全反铁磁性~81 K，净磁化强度最低。在~4.1 K 处的铒矩顺序。 ErFeO3 样品在~48 K 处表现出补偿温度 TCOMP，在~85-98 K 温度范围内表现出自旋重定向 TSR 现象。