Magnetic Anisotropy and Its Structural Origins in Ru-Substituted Manganite Films
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866915213363642368 |
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| author | Das, Brajagopal Wysocki, Lena Schöpf, Jörg Yang, Lin Capua, Amir van Loosdrecht, Paul H. M. Kornblum, Lior |
| author_facet | Das, Brajagopal Wysocki, Lena Schöpf, Jörg Yang, Lin Capua, Amir van Loosdrecht, Paul H. M. Kornblum, Lior |
| contents | Controlling magnetic anisotropy (MA) is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based data distribution. The perovskite manganite family provides a fertile playground for complex, intricate, and potentially useful structure-magnetism relations. Here we report on the MA that emerges in 10% Ru substituted $La_{0.7}Sr_{0.3}MnO_{3}$ (Ru-LSMO) films for which strong perpendicular magnetization and anisotropic in-plane magnetization are found. These moderately compressively strained films possess a rich microstructure, consisting of coherently strained phase which evolves into a one dimensional (1D) periodically-modulated structure above a critical thickness. We illustrate how 10% Ru substitution plays a crucial role behind the observed MA, and how the structural distortion and 1D periodic structural modulation produce the anisotropic in-plane magnetization. We highlight the practical significance of the observed MA, which could pave the way towards the realization of cutting-edge oxide-based room temperature spintronic memory devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_17008 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Magnetic Anisotropy and Its Structural Origins in Ru-Substituted Manganite Films Das, Brajagopal Wysocki, Lena Schöpf, Jörg Yang, Lin Capua, Amir van Loosdrecht, Paul H. M. Kornblum, Lior Materials Science Strongly Correlated Electrons Controlling magnetic anisotropy (MA) is important in a variety of applications including magnetic memories, spintronic sensors, and skyrmion-based data distribution. The perovskite manganite family provides a fertile playground for complex, intricate, and potentially useful structure-magnetism relations. Here we report on the MA that emerges in 10% Ru substituted $La_{0.7}Sr_{0.3}MnO_{3}$ (Ru-LSMO) films for which strong perpendicular magnetization and anisotropic in-plane magnetization are found. These moderately compressively strained films possess a rich microstructure, consisting of coherently strained phase which evolves into a one dimensional (1D) periodically-modulated structure above a critical thickness. We illustrate how 10% Ru substitution plays a crucial role behind the observed MA, and how the structural distortion and 1D periodic structural modulation produce the anisotropic in-plane magnetization. We highlight the practical significance of the observed MA, which could pave the way towards the realization of cutting-edge oxide-based room temperature spintronic memory devices. |
| title | Magnetic Anisotropy and Its Structural Origins in Ru-Substituted Manganite Films |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2303.17008 |