Resistance measurements at between 1.5 to 40K and Magnetoconductance measurements at about 1.5K have been made on l00ÅCu films,and also on Cu films with small amounts of La,Ce additives.The Ce atoms in Cu seem to...Resistance measurements at between 1.5 to 40K and Magnetoconductance measurements at about 1.5K have been made on l00ÅCu films,and also on Cu films with small amounts of La,Ce additives.The Ce atoms in Cu seem to give much stronger spin-orbit scattering than La atoms do.The behaviour of the Cu film with Ce additives is a composite of weak localization and Kondo effect.展开更多
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 fr...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.展开更多
文摘Resistance measurements at between 1.5 to 40K and Magnetoconductance measurements at about 1.5K have been made on l00ÅCu films,and also on Cu films with small amounts of La,Ce additives.The Ce atoms in Cu seem to give much stronger spin-orbit scattering than La atoms do.The behaviour of the Cu film with Ce additives is a composite of weak localization and Kondo effect.
文摘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.
