The origin of g $\approx$ 4 EPR line in magnetic nanocomposites: Manifestation of double quantum transitions in ferromagnetic granules

A. B. Drovosekov, M. Yu. Dmitrieva, A. V. Sitnikov +2

Films of metal-insulator nanogranular composites M${}_x$D${}_{100-x}$ with different compositions and atomic percentage of metal and dielectric phases (M = Fe, Co, Ni, CoFeB; D = Al$_2…