Amorphous (vitreous) Y3Fe5O12 has been prepared using the twin-roller quenching technique. The material is antiferromagnetic with a Néel temperature of approximately 40 K. The Mössbauer spectra indicate that the iron environment in the amorphous material is different from that in crystalline Y3Fe5O12 (YIG).
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Gyorgy et al. (1979) studied this question.
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