The unusual spin reorientation transition and exchange bias effect in Er0.6Dy0.4FeO3 single crystal
| Autor: | Liangbi Su, Sergei N. Barilo, Elena Mishina, N. E. Sherstyuk, Jiangtao Li, Hongbing Chen, Anhua Wu, Linwen Jiang |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Work (thermodynamics) Materials science Physics and Astronomy (miscellaneous) Magnetic structure Condensed matter physics 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Hysteresis Magnetization Exchange bias 0103 physical sciences 0210 nano-technology Single crystal Spin-½ |
| Zdroj: | Applied Physics Letters. 116:192409 |
| ISSN: | 1077-3118 0003-6951 |
| Popis: | In this work, the single crystal Er0.6Dy0.4FeO3 (EDFO) was grown using optical floating-zone method. The magnetic behaviors of single crystal EDFO at low temperatures were systematically investigated. With lowering temperatures, an unusual spin reorientation transition could be observed. The transition was reasonably speculated as Γ3 (Cx, Fy, Az) → Γ4 (Gx, Ay, Fz). Exchange bias effect could be found in the magnetization hysteresis loops, revealing the relationship of interaction between Fe3+ and R3+ (Dy3+ and Er3+) sublattices in EDFO single crystal. Additionally, when the magnetic field along the a-axis increased to 70 kOe, the magnetic phase transition took place at around 40 K, suggesting that an external field can trigger spin reorientation transition along a special axis. The features in single crystal EDFO have a significant potential in material physics and device application and provide insight into the magnetic structure and exchange bias for RFeO3 single crystals. |
| Databáze: | OpenAIRE |
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