Above Curie temperature, dielectric constant shows a decreasing trend.
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Development of Cuboidal KNbO<sub>3</sub>@α-Fe<sub>2</sub>O<sub>3</sub> Hybrid Nanostructures for Improved Photocatalytic and Photoelectrocatalytic Applications.
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The sentences
A conduction band hopping model is used to explain the behavior of the material when exponent η decreases with rise in temperature. When η shows an increasing trend with increase of temperature, a nonoverlapping small polaron tunneling conduction model is employed to explain the behavior of the material.