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Dielectric, magnetic and structural properties of novel multiferroic Eu.sub.0.5./sub.Ba.sub.0.5./sub.TiO.sub.3./sub. ceramics

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    0359330 - FZÚ 2012 RIV GB eng J - Journal Article
    Goian, Veronica - Kamba, Stanislav - Nuzhnyy, Dmitry - Vaněk, Přemysl - Kempa, Martin - Bovtun, Viktor - Knížek, Karel - Prokleška, J. - Borodavka, Fedir - Ledinský, Martin - Gregora, Ivan
    Dielectric, magnetic and structural properties of novel multiferroic Eu0.5Ba0.5TiO3 ceramics.
    Journal of Physics-Condensed Matter. Roč. 23, č. 2 (2011), s. 1-7. ISSN 0953-8984. E-ISSN 1361-648X
    R&D Projects: GA ČR(CZ) GA202/09/0682; GA ČR GD202/09/H041; GA AV ČR KAN301370701
    Grant - others:GA UK(CZ) SVV-2011-263303
    Institutional research plan: CEZ:AV0Z10100520
    Keywords : multiferroics * electric dipole moment of the electron * dielectric and magnetic properties
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 2.546, year: 2011

    Dielectric properties of Eu0.5Ba0.5TiO3 ceramics were investigated between 10 and 300 K in the frequency range of 1 MHz - 100 THz. Permittivity exhibits a strong peak near the ferroelectric phase transition at 215 K. This is mainly due to softening of the lowest frequency polar phonon revealed in THz and infrared spectra. The magnetic measurements performed at various frequencies in field-cooled and field-heating regime after cooling in zero magnetic fields excluded spin-glass behavior and proved an antiferromagnetic order below 1.9 K in Eu0.5Ba0.5TiO3.
    Permanent Link: http://hdl.handle.net/11104/0197131

     
     
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