Transport and Magnetic Properties of Nd-Ce-Cu Oxides

1 April 1989

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 28 (4A) , L563
https://doi.org/10.1143/jjap.28.l563

Abstract

Transport and magnetic properties of the T'-phase Nd_2-xCe_xCuO₄ system have been studied to investigate the occurrence of superconductivity by electron doping. The lattice constants and susceptibility of the system are reasonably interpreted in terms of all the Ce ions being tetravalent. The resistivity decreases by more than three orders of magnitude with Ce doping up to x=0.2. The measurements of thermopower confirm that the resistivity decrease arises from the increase of electron carriers supplied by the Ce⁴⁺ ions. Anomalous resistivity decreases are observed below 11 K, suggesting the occurrence of superconductivity in this system.

Keywords

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