Abstract
We report here observations of the enhanced diamagnetism in bulk, cylindrical single crystals of pure aluminum and its alloys, for which the impurity in all cases is silver. The diamagnetism occurs above the thermodynamic transition temperature and is attributed to the formation of an appreciable number of Cooper pairs by means of fluctuations in the superconducting order parameter. It is clear from these measurements that these materials exhibit, or nearly exhibit, the universal magnetic field-dependent behavior previously reported by Gollub et al. 1 and successfully explained by the theories of Lee and Payne2 and Kurkijarvi et al. 3 for pure superconductors. Theoretical calculations by these same authors, extended to establish the form of the universal scaling law for both clean and dirty materials, will be shown, however, to be in disagreement with experiment.
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.
