Abstract
EuSr 2Cu 2NbO 8 and EuSr 2Cu 2TaO 8, which adopt a structure related to YBa 2Cu 3O 7−x but with octahedral Nb and Ta ions substitutiong for the 4-coordinate Cu(1) ions, contains Cu 2+ ions, and are therefore semiconductors. Changes in preparative conditions have been found to have little influence on their electrical behaviour, but partial substitution of Fe and Ti for Nb in EuSr 2Cu 2NbO 8 produces metallic behaviour at around 300K, and a decrease in resistivity by a factor of around 10 4 at 50K.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
