Abstract
The boron partial isotope effect ( 10B- 11B) was investigated in YNi 2B 2C and in YPd 5B 3C 0.3. Samples with pure 10B and 11B, as well as natural boron, and a 1 : 1 mixture of 10B and 11B were investigated. We find a shift of the magnetic transition temperature of ΔT c = T c ( 10 B)−T c ( 11 B) = 690 mK for the Pd based samples, and of 380 mK for the Ni based samples. This corresponds to partial isotope exponents α B = 0.25 ± 0.04 (Ni based samples) and α B = 0.32 ± 0.04 (Pd based samples). This supports the classification of these materials as electron-phonon mediated superconductors. Preliminary investigations of the carbon isotope effect ( 12C- 13C) did not show a change in T c.
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.
