Cation, dipole, and spin order in Pb(Fe2/3W1/3)O3-based magnetoelectric multiferroic compounds
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2007-06-11
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Tan, Xiaoli
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Materials Science and Engineering
Materials engineers create new materials and improve existing materials. Everything is limited by the materials that are used to produce it. Materials engineers understand the relationship between the properties of a material and its internal structure — from the macro level down to the atomic level. The better the materials, the better the end result — it’s as simple as that.
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Abstract
Long range 1:1 cation order was developed in Pb(Fe2(1−x)/3Sc2x/3W1/3)O3solid solution compounds by high temperature solid state reaction. It is found that the degree of cation order directly influences the saturation magnetization in these single phase compounds. A high saturation magnetization (∼0.61μB/f.u.) was observed for x=0.15 at 10Kunder 5T. A ferrimagnetic structure was suggested to take into account for the observed magnetic behavior. These compounds also display a saturated electrical polarization of ∼15μC/cm2 at 40kV/cm at 120K.
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The following article appeared in Applied Physics Letters 90 (2007)" 242905 and may be found at http://dx.doi.org/10.1063/1.2748098.
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Mon Jan 01 00:00:00 UTC 2007