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.
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18 October 2021
Research Article|
October 19 2021
Facet controlled anisotropic magnons in Y3Fe5O12 thin films
Rohit Medwal
;
Rohit Medwal
1
Natural Sciences and Science Education, National Institute of Education, Nanyang, Technological University
, Singapore 637616, Singapore
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Angshuman Deka
;
Angshuman Deka
a)
2
Department of Physics and Information Technology, Kyushu Institute of Technology
, Iizuka 820-8502, Japan
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Joseph Vimal Vas;
Joseph Vimal Vas
1
Natural Sciences and Science Education, National Institute of Education, Nanyang, Technological University
, Singapore 637616, Singapore
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Martial Duchamp;
Martial Duchamp
3
Laboratory of In-situ and Operando Electron Nanoscopy (LISION), School of Material Science and Engineering, Nanyang Technological University
, Singapore 637616, Singapore
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Hironori Asada;
Hironori Asada
4
Graduate School of Sciences and Technology for Innovation, Yamaguchi University
, Ube 755-8611, Japan
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Surbhi Gupta
;
Surbhi Gupta
b)
1
Natural Sciences and Science Education, National Institute of Education, Nanyang, Technological University
, Singapore 637616, Singapore
2
Department of Physics and Information Technology, Kyushu Institute of Technology
, Iizuka 820-8502, Japan
b)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Yasuhiro Fukuma;
Yasuhiro Fukuma
b)
2
Department of Physics and Information Technology, Kyushu Institute of Technology
, Iizuka 820-8502, Japan
5
Research Center for Neuromorphic AI Hardware, Kyushu Institute of Technology
, Kitakyushu 808-0196, Japan
b)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Rajdeep Singh Rawat
Rajdeep Singh Rawat
b)
1
Natural Sciences and Science Education, National Institute of Education, Nanyang, Technological University
, Singapore 637616, Singapore
b)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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a)
Present address: Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA.
b)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Appl. Phys. Lett. 119, 162403 (2021)
Article history
Received:
July 26 2021
Accepted:
October 05 2021
Citation
Rohit Medwal, Angshuman Deka, Joseph Vimal Vas, Martial Duchamp, Hironori Asada, Surbhi Gupta, Yasuhiro Fukuma, Rajdeep Singh Rawat; Facet controlled anisotropic magnons in Y3Fe5O12 thin films. Appl. Phys. Lett. 18 October 2021; 119 (16): 162403. https://doi.org/10.1063/5.0064653
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