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Structural, transport and magnetic properties of Sr2RuTiO 6
Published in
2010
Volume: 150
   
Issue: 31-32
Pages: 1450 - 1452
Abstract
The double perovskite, Sr2RuTiO6 has been studied by X-ray powder diffraction, magnetizations and magnetoresistance techniques. Rietveld analysis of the X-ray diffraction shows that the sample crystallizes in tetragonal structure with space group I4mcm and there is no indication of long range Ru/Ti cation ordering. The magnetic studies point towards the existence of magnetic polarons in the paramagnetic state with a weak ferromagnetic transition at 145 K. The temperature dependent magnetoresistance studies reveal an unusual cross over from positive to negative magnetoresistance at low temperature (∼15 K). The complex magnetotransport properties of Sr 2RuTiO6 arise from the competing ferromagnetic and antiferromagnetic superexchange interactions between Ru ions via Ti/O ions, initiated by the B-site cation disorder. © 2010 Elsevier Ltd. All rights reserved.
About the journal
JournalSolid State Communications
ISSN00381098
Open AccessNo
Concepts (39)
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    A. double perovskite materials
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    B-SITE CATIONS
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    B. magnetoresistance
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    C. transport properties
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    CATION ORDERING
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    CROSS OVER
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    D. structural properties
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    Double perovskites
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    Ferromagnetic and anti-ferromagnetic
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    Long range
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    Low temperatures
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    Magnetic polarons
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    Magnetic studies
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    Magneto transport properties
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    Negative magneto-resistance
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    Paramagnetic state
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    Space groups
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    Temperature dependent
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    Tetragonal structure
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    TRANSPORT AND MAGNETIC PROPERTIES
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    WEAK-FERROMAGNETIC TRANSITION
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    Antiferromagnetism
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    Diffraction
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    Electric resistance
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    Ferromagnetic materials
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    Ferromagnetism
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    Magnetic field effects
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    Magnetic properties
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    Magnetoelectronics
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    Magnetoresistance
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    Perovskite
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    Polarons
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    Positive ions
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    Rietveld analysis
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    Rietveld method
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    Transport properties
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    X ray diffraction
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    X ray powder diffraction
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    Structural properties