NUCLEAR SPIN-LATTICE RELAXATION IN SUPERCONDUCTING ALUMINUM

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Physical Review (U.S.) Superseded in part by Phys.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.125.159· OSTI ID:4818496

Masuda, Y; Redfield, A G

The nuclear spin-lattice relaxation time of superconducting aluminum was measured from 0.35 deg K to the crttical temperature. The method used was that of Hebel and Slichter; low temperatures were attained through the use of a Hea cryostat. The estimated energy gap is 3.2 kT/sub c/, in agreement with microwave measurements. The data are in good agreement with the predictions of Hebel and Slichter based on the Bardeen, Cooper, and Schrieffer theory of superconductivity. The data indicate a smearing or width of the BCS energy levels which decreases with increasing temperature and is approximately 1/l0 of the energy gap at all temperatures. (auth)

• Research Organization: International Business Machines Corp., New York
• NSA Number: NSA-16-008207
• OSTI ID: 4818496
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 125; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALUMINUM
BCS THEORY
CRYOGENICS
ENERGY LEVELS
HELIUM 3
LATTICES
LIFETIME
MEASURED VALUES
MICROWAVES
PHONONS
PHYSICS
RELAXATION
SPIN
SUPERCONDUCTIVITY
TEMPERATURE