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Study of structural effects on the dielectric and magnetic properties of alkaline earth metals doped SmTiO3
M. V. Beena, Kanagaraj M, Kumar P.S, Kokila I.P, Therese H.A, Beena M.V.
Published in Elsevier Ltd
2017
Volume: 86
   
Pages: 153 - 158
Abstract
Sm1−xAexTiO3 (Ae = Ba, Sr & x = 0.5 − 0.25) synthesized using solid state route were subjected to structural, morphological, magnetic and dielectric permittivity measurements for the investigation of multiferroic nature of these compounds. The P-XRD studies revealed the formation of orthorhombic structured (Pbnm) single phase at room temperature. Magnetic measurements exhibit the antiferromagnetic (AFM) nature of Sm1−xAexTiO; however, the Neel temperature reduces from 53 K for undoped SmTiO3 to 45 K and 40 K for Ba and Sr doped SmTiO3 respectively. The M vs H study also showed a faint AFM hysteresis at RT. Dielectric properties under various frequency ranges (100 Hz–5 MHz) investigated between 100 and 400 °C depicts a weak ferroelectric phase due to moderate structural distortion induced by chemical doping which in turn could be responsible for the distinctive magnetization and polarisation changes at room temperature. © 2016 Elsevier Ltd
About the journal
JournalData powered by TypesetMaterials Research Bulletin
PublisherData powered by TypesetElsevier Ltd
ISSN00255408
Open AccessNo
Concepts (18)
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    Alkalinity
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    Dielectric materials
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    Dielectric properties
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    Ferroelectricity
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    Magnetic materials
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    Magnetic properties
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    Magnetism
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    Permittivity
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    Permittivity measurement
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    Antiferromagnetics
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    DIELECTRIC AND MAGNETIC PROPERTIES
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    Ferroelectric phase
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    Frequency ranges
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    Multiferroics
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    SOLID-STATE ROUTES
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    Structural distortions
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    STRUCTURAL EFFECT
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    Structural metals