New elaboration technique, structure and physical properties of infinite-layer Sr1-xLnxCuO2 (Ln = Nd, Pr)

A. Podlesnyak, A. Mirmelstein, V. Bobrovskii, V. Voronin, A. Karkin, I. Zhdakhin, B. Goshchitskii, E. Midberg, V. Zubkov, T. D'Yachkova, E. Khlybov, J. Y. Genoud, S. Rosenkranz, F. Fauth, W. Henggeler, A. Furrer

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Abstract

The infinite-layer compounds of the (Sr, Ln)CuO2 family have been prepared by a new synthesis method from the low-pressure phase of SrCuO2 and NdCuO2 as starting materials. The crystal structure, microstructure and superconductivity of these samples have been studied with use of neutron powder diffraction, optical micrographs, energy-dispersive X-ray analysis, magnetic-susceptibility and electrical-resistivity measurements. The ratio of the lattice constants a/c as an empirical parameter for the existence of superconductivity in the electron-doped infinite-layer compounds is discussed.

Original languageEnglish
Pages (from-to)159-168
Number of pages10
JournalPhysica C: Superconductivity and its Applications
Volume258
Issue number1-2
DOIs
StatePublished - Feb 10 1996
Externally publishedYes

Funding

The authors are grateful to the Vereshchagin High-Pressure Physics Institute (Troitsk) for having access to the high-pressure facility. This research was supported by INTAS (Grant No. 93-0135) and the Russian Scientific Council on High-Tc Prob]ems (Project No. 9300I). The research described in this publication was made possible in part by Grants No. RG 8000, RG 8300 from both the International Science Foundation and the Russian Government.

FundersFunder number
INTAS93-0135
Russian Scientific CouncilRG 8300, 9300I, RG 8000
International Foundation for Science

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