ISOTOPE EFFECT IN SUPERCONDUCTING LEAD

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.121.86· OSTI ID:4120706

Shaw, R W; Mapother, D E; Hopkins, D C

A continuation is given of measurements of the difference in critical fields of superconducting lead specimens with various isotopic masses. The isotope samples were repurified and the low-temperature behavior is now more fully understood. The results near T/sub e/ are consistent with the relation T/ sub c/ = const x M/sup P/. where M is the average isotopic mass. and yield a value p = -0.478 plus or minus 0.014. The measurements at lower temperatures confirm the similarity principle to within approximately 0.1% and indicate that gamma , the coefficient in the normal electronic specific heat, is independent of isotopic mass to a similar accuracy. (auth)

• Research Organization: Univ. of Illinois, Urbana
• NSA Number: NSA-15-006847
• OSTI ID: 4120706
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 121; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ISOTOPE EFFECTS
LEAD
LEAD ISOTOPES
LOW TEMPERATURE
MEASURED VALUES
PHYSICS
SUPERCONDUCTIVITY