ULTRASONIC ABSORPTION BY SUPERCONDUCTING Nb-Zr ALLOYS

Journal Article · Tue Oct 15 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys.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.132.621· OSTI ID:4640054

Claiborne, L T; Einspruch, N G

Ultrasonic attenuation studies in dilute superconducting Nb-Zr alloys revealed strongly temperature-dependent absorption peaks that cannot be explained in terms of single electron-phonon scattering processes. The set of temperatures at which these peaks occur is dependent on the frequency of the sound wave and the strain content of the sample. A phenomenological model is proposed that interprets the absorption peaks as being due to an exchange of energy that occurs when the sound frequency is equal to one of a set of collective excitation modes of the electron gas. The assumptions on which the model is based are the same as those that yield collective excitations within the energy gap in more fundamental descriptions of the superconducting please delete the above abstract no. 39767--- ---

• Research Organization: Texas Instruments Incorporated, Dallas
• NSA Number: NSA-17-039767
• OSTI ID: 4640054
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 132; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ELECTRIC CHARGES
ELECTRONS
ENERGY
EXCITATION
FERMI GAS
FERMIONS
FLUID FLOW
HYDRODYNAMICS
INTERACTIONS
METALS
NIOBIUM ALLOYS
PHONONS
PHYSICS
SCATTERING
SOUND
SUPERCONDUCTIVITY
TEMPERATURE
ULTRASONICS
ZIRCONIUM ALLOYS