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1. STUDY OF THE TRANSPORT PROPERTIES IN Ca DOPING NdCeCuO SYSTEM

Author

Wang Cheng-You, Cao Liezhao, Chen Xian-Hui, Feng Yu, Ruan Ke-Qing, and Jia Yun-Bo

Subjects
symbols.namesake, Condensed matter physics, Hall effect, Chemistry, Doping, Fermi level, Analytical chemistry, symbols, Lattice distortion, General Physics and Astronomy, Charge carrier
Abstract

In order to investigate the nature of the charge carriers in NdCeCuO system, we prepared Nd1.85-xCe0.15CaxCuO4-δ and Nd2-xCaxCuO4-δ , and studied transport properties of them. With increasing Ca concentration, the sign of Hall coefficient is changed from negative to positive. The hole state in CuO2 plane arises from the lattice distortion induced by Ca doping, which leads to the- O2p band pass through the Fermi level.

Published
1997

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