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Giant Faraday effect of FeCo‐BaF and FeCo‐SiN nanogranular films
Author(s) -
Kobayashi Nobukiyo,
Ikeda Kenji,
Arai KenIchi
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.12308
Subject(s) - materials science , faraday effect , ferromagnetism , faraday cage , condensed matter physics , matrix (chemical analysis) , nanocomposite , nanometre , composite material , magnetic field , physics , quantum mechanics
We introduce FeCo‐BaF and FeCo‐SiN nanogranular films exhibiting giant Faraday effect. These films have a nanocomposite structure, in which nanometer‐sized FeCo ferromagnetic granules are dispersed in BaF 2 or Si 3 N 4 matrix. FeCo‐BaF film has a good figure of merit of Faraday effect from the crystalized BaF 2 matrix. FeCo‐SiN film has a large refraction index from the nature of Si 3 N 4 matrix. These properties contribute to the practical application of nanogranular films to optical devices.