Facet controlled anisotropic magnons in Y3Fe5O12 thin films
Directional specific control on the generation and propagation of magnons is essential for designing future magnon-based logic and memory devices for low power computing. The epitaxy of the ferromagnetic thin film is expected to facilitate anisotropic linewidths, which depend on the crystal cut and...
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| Veröffentlicht in: | Applied physics letters 2021-10, Vol.119 (16) |
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| container_title | Applied physics letters |
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| creator | Medwal, Rohit Deka, Angshuman Vas, Joseph Vimal Duchamp, Martial Asada, Hironori Gupta, Surbhi Fukuma, Yasuhiro Rawat, Rajdeep Singh |
| description | Directional specific control on the generation and propagation of magnons is essential for designing future magnon-based logic and memory devices for low power computing. The epitaxy of the ferromagnetic thin film is expected to facilitate anisotropic linewidths, which depend on the crystal cut and the orientation of the thin film. Here, we have shown the growth-induced magneto-crystalline anisotropy in 40 nm epitaxial yttrium iron garnet (YIG) thin films, which facilitate cubic and uniaxial in-plane anisotropy in the resonance field and linewidth using ferromagnetic resonance measurements. The growth-induced cubic and non-cubic anisotropy in epitaxial YIG thin films are explained using the short-range ordering of the Fe3+ cation pairs in octahedral and tetrahedral sublattices with respect to the crystal growth directions. This site-preferred directional anisotropy enables an anisotropic magnon–magnon interaction and opens an avenue to precisely control the propagation of magnonic current for spin-transfer logics using YIG-based magnonic technology. |
| doi_str_mv | 10.1063/5.0064653 |
| format | Article |
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The epitaxy of the ferromagnetic thin film is expected to facilitate anisotropic linewidths, which depend on the crystal cut and the orientation of the thin film. Here, we have shown the growth-induced magneto-crystalline anisotropy in 40 nm epitaxial yttrium iron garnet (YIG) thin films, which facilitate cubic and uniaxial in-plane anisotropy in the resonance field and linewidth using ferromagnetic resonance measurements. The growth-induced cubic and non-cubic anisotropy in epitaxial YIG thin films are explained using the short-range ordering of the Fe3+ cation pairs in octahedral and tetrahedral sublattices with respect to the crystal growth directions. 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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Anisotropy Applied physics Crystal growth Crystal structure Crystals Epitaxial growth Ferromagnetic materials Ferromagnetic resonance Magnons Memory devices Propagation Thin films Yttrium Yttrium-iron garnet |
| title | Facet controlled anisotropic magnons in Y3Fe5O12 thin films |
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