Abstract
A percolated-induced ferromagnetic moment in KNixZn1−xF3 for x = 0:57, which is Heisenberg-type diluted three-dimensional magnet, is studied by electron spin resonance. Below TC ' 24 K, ferrimagnetic resonance spectra appeared as expected. On the other hand, in KCoxZn1−xF3 for 0.49 ≥ x < 1, which are Ising-type diluted three-dimensional magnets, a percolated-induced ferromagnetic moment did not appear. This difierence may play an important key role in Coulomb repulsion between Zn2+ ions because KNixZn1−xF3 consists of simple cubic lattice, on the other hand tetragonal distortion exists in KCoxZn1−xF3.
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