Temperature and Magnetic Field-Induced Spin Reorientation in Rare-Earth Perovskite ErFe0.75Cr0.25O3

• Published in: Journal of superconductivity and novel magnetism Vol. 30; no. 10; pp. 2791 - 2796
• Main Authors: Xiang, Maolin, Cao, Yiming, Zhao, Weiyao, Kang, Baojuan, Feng, Zhenjie, Sharma, Poorva, Zhang, Jincang, Ren, Wei, Cao, Shixun
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.10.2017
• Subjects: Characterization and Evaluation of Materials; Condensed Matter Physics; Magnetic Materials; Magnetism; Original Paper; Physics; Physics and Astronomy; Strongly Correlated Systems; Superconductivity; Spin-flop transition; Rare-earth perovskite; Spin reorientation; Compensation-like behavior
• ISSN: 1557-1939; 1557-1947
• DOI: 10.1007/s10948-017-4062-0

We report the synthesis of a single-phase rare-earth perovskite ErFe 0.75 Cr 0.25 O 3 polycrystalline and its magnetic properties. A transition occurs at temperature T N = 120 K below which we observe a weak magnetic moment from the canted antiferromagnetism. Interestingly, ErFe 0.75 Cr 0.25 O 3 reveals the compensation-like behavior at T comp−like = 27 K, where the net magnetic moments of transition-metal ions are antiparallel and equal to the induced net moment of Er 3+ ions, and the paramagnetic contribution of Er 3+ moment presenting a nonzero magnetization. The temperature-dependent magnetization measurement shows a spin reorientation transition from Γ 4 to Γ 1 at 6 K. Furthermore, it is also observed that there is a spin-flop transition at low temperature induced by external magnetic field in Γ 1 state (antiferromagnetic state). The interaction between (Fe/Cr)-3 d and Er-4 f electrons drives an extremely interesting spin reorientation transition which is highly sensitive to magnetic field and temperature.