Spin wave isolator based on frequency displacement nonreciprocity in ferromagnetic bilayer

Journal Article · Thu May 07 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4915101· OSTI ID:22410060

Shichi, Shinsuke; Matsuda, Kenji; Okajima, Shingo; Hasegawa, Takashi; Okada, Takekazu ^[1]; Kanazawa, Naoki; Goto, Taichi; Takagi, Hiroyuki; Inoue, Mitsuteru ^[2]

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1. Murata Manufacturing Co., Ltd., Kyoto 617-8555 (Japan)
2. Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibari-Ga-Oka, Tempaku, Toyohashi, Aichi 441-8580 (Japan)

We demonstrated the spin wave isolator using bilayer ferromagnetic media comprising single crystalline and poly-crystalline yttrium iron garnet films, which can control the propagation frequency of magnetostatic waves by the direction of applied magnetic field. This isolator's property does not depend on their thickness then this can be downsized and integrated for nano-scale magnonic circuits. Calculated dispersion relationship shows good agreement with measured one.

• OSTI ID: 22410060
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISPERSION RELATIONS
FERRITE GARNETS
FERROMAGNETIC MATERIALS
FERROMAGNETISM
FILMS
LAYERS
MAGNETIC FIELDS
MONOCRYSTALS
SPIN WAVES
THICKNESS
YTTRIUM COMPOUNDS