Published November 1, 1990
| Version v1
Journal article
Determination of the Cooper-pair mass in niobium
Creators
- 1. Department of Physics, Stanford University, Stanford, CA (USA)
Description
We have measured the ratio of Planck's constant h to the observable mass m' of a Cooper pair in a superconductor, using a rotating superconducting ring. The flux through such a ring of area S is zero for a set of rotation frequencies evenly spaced by Δν and h/2πm'=2SΔν. Our measurements of S and Δν enable us to quote a value of m'/2me for niobium of 1.000 084 (21). This result disagrees with predictions from currently available theories
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 42
- Journal Issue
- 13
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 7885-7893
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22042250
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- COOPER PAIRS; ELECTRONIC STRUCTURE; NIOBIUM; PLANCK LAW; SUPERCONDUCTIVITY
- Descriptors DEC
- ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELEMENTS; METALS; PHYSICAL PROPERTIES; TRANSITION ELEMENTS