Tailoring spin reorientation and magnetic interaction for room-temperature spintronics in Tb-Doped SmFeO3 single crystal
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909775294365696 |
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| author | Xue, Mingzhu Li, Xin Ding, Shilei Li, Qixin Di, Wenhao Wu, Anhua He, Bin Yan, Shishen Yang, Wenyun Yang, Jinbo |
| author_facet | Xue, Mingzhu Li, Xin Ding, Shilei Li, Qixin Di, Wenhao Wu, Anhua He, Bin Yan, Shishen Yang, Wenyun Yang, Jinbo |
| contents | Selective doping with different R-site ions in rare-earth perovskite RFeO3 compounds offers an effective way to achieve atomic-scale tuning of the complex exchange interactions. In this study, the spin reorientation temperature of Tb-doped SmFeO3 (Sm0.7Tb0.3FeO3) single crystal is lowered to approximately 350 K, making it more suitable for room-temperature applications. Notably, the magnetic compensation point is absent at low temperatures, and both R3+ and Fe3+ ion moments can be fully saturated under high magnetic fields, suggesting that Tb3+ doping drives the R3+ and Fe3+ sublattices toward ferromagnetic coupling. Moreover, the hysteresis loop along the a-axis transitions from a double triangle shape below the spin reorientation temperature to a rectangular shape above the spin reorientation temperature, and the nucleation field exhibits a strong dependence on both the measurement temperature and the maximum applied magnetic field. Above results can be explained by a modified two-domain model with mean field correction. The results of magnetic domain measurements indicate that the emergence of the double-triangular hysteresis loop is jointly determined by domain wall motion and the nonlinear response of the parasitic magnetic moment along the a-axis. These findings provide valuable insights and new materials for advancing the use of RFeO3 compounds in spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_23086 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Tailoring spin reorientation and magnetic interaction for room-temperature spintronics in Tb-Doped SmFeO3 single crystal Xue, Mingzhu Li, Xin Ding, Shilei Li, Qixin Di, Wenhao Wu, Anhua He, Bin Yan, Shishen Yang, Wenyun Yang, Jinbo Materials Science Selective doping with different R-site ions in rare-earth perovskite RFeO3 compounds offers an effective way to achieve atomic-scale tuning of the complex exchange interactions. In this study, the spin reorientation temperature of Tb-doped SmFeO3 (Sm0.7Tb0.3FeO3) single crystal is lowered to approximately 350 K, making it more suitable for room-temperature applications. Notably, the magnetic compensation point is absent at low temperatures, and both R3+ and Fe3+ ion moments can be fully saturated under high magnetic fields, suggesting that Tb3+ doping drives the R3+ and Fe3+ sublattices toward ferromagnetic coupling. Moreover, the hysteresis loop along the a-axis transitions from a double triangle shape below the spin reorientation temperature to a rectangular shape above the spin reorientation temperature, and the nucleation field exhibits a strong dependence on both the measurement temperature and the maximum applied magnetic field. Above results can be explained by a modified two-domain model with mean field correction. The results of magnetic domain measurements indicate that the emergence of the double-triangular hysteresis loop is jointly determined by domain wall motion and the nonlinear response of the parasitic magnetic moment along the a-axis. These findings provide valuable insights and new materials for advancing the use of RFeO3 compounds in spintronics. |
| title | Tailoring spin reorientation and magnetic interaction for room-temperature spintronics in Tb-Doped SmFeO3 single crystal |
| topic | Materials Science |
| url | https://arxiv.org/abs/2503.23086 |