Research of Features Magnetic Permeability and Domain Structures in Fe2O3:GA Crystals near the Morin Transition

A. V. Chzhan; V.N. Vasiliev; T.N. Isaeva; G.S. Patrin

doi:10.4028/www.scientific.net/SSP.152-153.29

Paper Titles

Garnet Films for Thermo-Magnetic Recording and Nanotechnology Purposes
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The Effect of Disordering on Magnetic Properties of Fe-Al Alloys
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Influence of Magnetism on Interaction Energy between 3d Impurities and Hydrogen in Palladium Crystal in the Presence of Vacancies
p.19

Iron-Based Amorphous Magnetic Phase Formation in the Course of Fe and Fe₂O₃ Mechanical Activation
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Research of Features Magnetic Permeability and Domain Structures in Fe₂O₃:GA Crystals near the Morin Transition
p.29

Structural and Magnetic Phase Transitions in ErFe₂H_x Hydrides
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Spontaneous and Field-Induced Magnetic Phase Transitions in Tb_1-xR_xMn₆Sn₆ (R = Gd, Y) Compounds
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Role of Electronic Band Structure and Lattice Parameters in Magnetism of the R₂(Fe,M)₁₇, М = Si, Al Compounds
p.41

Magnetic Phase Diagram and Charge Transport in TmB12
p.45

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Research of Features Magnetic Permeability and Domain Structures in Fe₂O₃:GA Crystals near the Morin Transition

Abstract:

Specially picked up web-chamber is used for visualization of domain structure in hematite. An analysis of domain configuration shows, that domain structure of hematite in a basal plane represents multilayered structure which contains domains both in paralleled thickness and in the parallel basal planes. The temperature features of magnetic permeability and domain structures in Fe2O3:Ga crystals near the Morin transition are investigated. Observable changes of magnetic permeability and changes in domain structure confirm that transition from АFM to WFM occurs in the hematite with Ga impurity as transition of the first sort. Results of research of antiferromagnetic and weakly ferromagnetic resonances (AFMR and WFMR) in these compounds are presented.