Spin wave differential circuit for realization of thermally stable magnonic sensors

Journal Article · Mon Mar 30 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4916989· OSTI ID:22398824

Goto, Taichi; Kanazawa, Naoki; Buyandalai, Altansargai; Takagi, Hiroyuki; Nakamura, Yuichi; Inoue, Mitsuteru ^[1]; Okajima, Shingo; Hasegawa, Takashi ^[2]; Granovsky, Alexander B. ^[3]; Sekiguchi, Koji ^[4]; Ross, Caroline A. ^[5]

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1. Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibari-Ga-Oka, Tempaku, Toyohashi, Aichi 441-8580 (Japan)
2. Murata Manufacturing Co., Ltd., Kyoto 617-8555 (Japan)
3. Faculty of Physics, Moscow State University, Leninskie Gory, Moscow 119992 (Russian Federation)
4. Department of Physics, Keio University, Yokohama 223-8522 (Japan)
5. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)

A magnetic-field sensor with a high sensitivity of 38 pT/Hz was demonstrated. By utilizing a spin-wave differential circuit (SWDC) using two yttrium iron garnet (YIG) films, the temperature sensitivity was suppressed, and the thermal stability of the phase of the spin waves was −0.0095° K{sup −1}, which is three orders of magnitude better than a simple YIG-based sensor, ∼20° K{sup −1}. The SWDC architecture opens the way to design YIG-based magnonic devices.

• OSTI ID: 22398824
• Journal Information: Applied Physics Letters, Vol. 106, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
FERRITE GARNETS
FILMS
IRON OXIDES
MAGNETIC FIELDS
MAGNONS
PHASE STABILITY
SENSITIVITY
SENSORS
SPIN WAVES
TEMPERATURE DEPENDENCE
YTTRIUM COMPOUNDS