Investigation of the garnet–perovskite transition in Nd doped YIG by means of magnetic disaccommodation | Zendy

HernándezGómez P. | Zendy; De Francisco C. | Zendy; Torres C. | Zendy; Iñiguez J. | Zendy; Raposo V. | Zendy; Perdigao J. M. | Zendy; Ferreira A. R. | Zendy

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Investigation of the garnet–perovskite transition in Nd doped YIG by means of magnetic disaccommodation

Author(s) -

HernándezGómez P.,

De Francisco C.,

Torres C.,

Iñiguez J.,

Raposo V.,

Perdigao J. M.,

Ferreira A. R.

Publication year - 2004

Publication title -

physica status solidi (c)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.21

H-Index - 46

eISSN - 1610-1642

pISSN - 1610-1634

DOI - 10.1002/pssc.200304392

Subject(s) - materials science , perovskite (structure) , crystallite , doping , condensed matter physics , analytical chemistry (journal) , magnetite , ferromagnetism , nuclear magnetic resonance , mineralogy , chemistry , crystallography , metallurgy , optoelectronics , physics , chromatography

The garnet‐perovskite transition is studied in this work with magnetic disaccommodation on polycrystalline Nd doped YIG samples Y 3−x Nd x Fe 5 O 12 (0 < x < 2.5). A very different behaviour with the sintering atmosphere is observed. The results of magnetic disaccommodation for samples sintered in air reveal that the low temperature peak of YIG at 120 K disappear and another peak emerge at 300 K with x = 2.0, when the solubility limit is surpassed and the compound contains secondary perovskite phase and magnetite. For CO 2 sintered samples, the process at 120 K exhibit magnetic accommodation features (i.e. negative disaccommodation), and vanishes with increasing Nd substitution, together with the appearance of the 300 K peak associated with the garnet–perovskite transition which takes place with x ≈ 1.4 doping. Thermal evolution of magnetic permeability and X‐ray diffraction support the behaviour observed. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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