Research of features magnetic permeability and domain structures in Fe 2O3:GA crystals near the morin transition

Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Год издания: 2009

Идентификатор DOI: 10.4028/www.scientific.net/SSP.152-153.29

Ключевые слова: Antiferromagnetic, Domain structure, Hematite, Morin transition, Weakly ferromagnetic, Antiferromagnetic materials, Antiferromagnetism, Capillarity, Crystal impurities, Crystals, Ferromagnetic materials, Ferromagnetic resonance, Ferromagnetism, Gallium, Hematite, Iron ores, Magnetic permeability, Oxide minerals, Permanent magnets, Antiferromagnetism, Crystal impurities, Ferromagnetic materials, Ferromagnetism, Gallium, Hematite, Iron compounds, Magnetic materials, Magnetic permeability, Magnetism, AFM, Antiferromagnetic, Antiferromagnetic domains, Antiferromagnetics, Basal planes, Domain configurations, Domain structure, Morin transitions, Multi-layered structure, Weakly ferromagnetic, Magnetic domains, Magnetic domains

Аннотация: 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 AFM 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.

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Издание

Журнал: (20 June 2008 through 25 June 2008, Moscow

Выпуск журнала: Vol. 152-153

Номера страниц: 29-32

Авторы

  • Chzhan A.V. (Siberian Federal University)
  • Vasiliev V.N. (Kirenskii Institute of Physics,Siberian Branch of RAS,Institute of Physics)
  • Isaeva T.N. (Kirenskii Institute of Physics,Siberian Branch of RAS,Institute of Physics)
  • Patrin G.S. (Siberian Federal University)

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