Metastable phases in epitaxial Nb-La and Nb-Ce system

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, , Citation Zhang Jinlong et al 1986 Chinese Phys. Lett. 3 437 DOI 10.1088/0256-307X/3/10/002

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1 Department of Physics, Peking University, Beijing

Dates

  1. Received 16 May 1986
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0256-307X/3/10/437

Abstract

Epitaxial metal film sandwiches of Nb-La-Nb and Nb-Ce-Nb have been prepared in an ultra high vacuum environment. In the sandwiches the La layers and Ce layers are found to be fcc La and bcc Ce, respectively, different from that of bulks. The transmission electron microscope (TEM) observations indicate that La or Ce was grown with partial pseudomorphism epitaxy on bcc Nb layers. The origin of the unusual epitaxies has been discussed.

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