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Development of a high‐sensitivity VNA‐FMR spectrometer with field modulation detection and its application to magnetic characterization
Author(s) -
Tamaru Shingo,
Yamamoto Tatsuya,
Onuma Tomoyuki,
Kikuchi Nobuaki,
Okamoto Satoshi
Publication year - 2021
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.12320
Subject(s) - spectrometer , sensitivity (control systems) , materials science , broadband , ferromagnetic resonance , modulation (music) , characterization (materials science) , magnetic field , optoelectronics , electronic engineering , optics , acoustics , engineering , physics , nanotechnology , magnetization , quantum mechanics
We have developed a vector network analyzer ferromagnetic resonance (VNA‐FMR) spectrometer with field modulation detection. This system provides broadband coverage and very high sensitivity to resolve the FMR signal on a ultra‐thin (∼ 1 nm thick) magnetic film. This paper first presents the detail of the VNA‐FMR spectrometer built in this work, including its operation principle and design guideline, and second various magnetic properties obtained by the VNA‐FMR measurement results.