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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

M. Itoh ,
J-D. Yu ,
K. Nishi ,
T. Katsumata ,
Y. Inaguma  and
T. Huang
M. Itoh
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan, itohl@rlem.titech.ac.jp
J-D. Yu
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan, itohl@rlem.titech.ac.jp
K. Nishi
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan, itohl@rlem.titech.ac.jp
T. Katsumata
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan, itohl@rlem.titech.ac.jp
Y. Inaguma
Affiliation:
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama 226, Japan, itohl@rlem.titech.ac.jp
T. Huang
Affiliation:
Department of physics, Shanghai University, Shanghai 201800, China
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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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 411
Copyright
Copyright © Materials Research Society 1997

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References

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