Abstract
The directly isolated precipitate of RbxC60 from liquid ammonia contains solvent molecules, NH3. Thermal treatment is necessary to remove ammonia solvent molecules from the lattice as well as to homogenize the Rb distribution within the synthetic product, to produce a face-centered cubic (fcc) unit cell. This latter unit cell is the form of Rb3C60 which shows superconductivity. The superconducting transition temperature, Tc, is found to be lower in Rb3C60 samples prepared from liquid ammonia than from those prepared by a conventional vapor transport technique. The depression of Tc can be explained in terms of a large degree of orientational disorder of C60 ions, along with effects of a trace amount of residual NH3, as suggested from solid-state NMR results.
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.
