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Effect of Hydrostatic Pressure (≤2GPa) on the Transport Properties in Perovskite-Type Oxides
Published online by Cambridge University Press: 15 February 2011
Abstract
A clamp-type hydrostatic pressure device for the measurement of properties of perovskite-related compounds under pressure was established in our laboratory and applied to the measurements of resistivity, AC susceptibility, Hall effect and ionic conductivity. In usual perovskite-type oxides, loading of a pressure of 1 GPa (lOkbar) corresponds to a contraction of interionic distance as large as 0.2%. This small value is not enough to evaluate the whole scheme of phase transition behavior for perovskite-type oxides but very effective for the observation of changes in interactions between electrons and ions. Some problems concerned with this method have been pointed out.
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- Copyright © Materials Research Society 1997