Anelastic relaxation due to the tunneling of trapped D in Ta

Journal Article · Fri May 01 04:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.7264· OSTI ID:6650106

Cannelli, G; Cantelli, R; Cordero, F

Internal friction measurements in the kHz range have been performed on Ta containing D, O, and N at liquid-helium temperature. A relaxation process is observed below 60 K showing a sharp discontinuity in the slope at the normal-superconductor transition temperature. The process is interpreted as relaxation of a two-level system consisting of O (N)-D complexes interacting mainly with the conduction electrons.

• Research Organization: Istituto di Acustica ''O.M. Corbino,'' Consiglio Nazionale delle Ricerche, via Cassia 1216, I-00189 Roma, Italy
• OSTI ID: 6650106
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ATOM TRANSPORT
DEUTERIUM
ELEMENTS
FRICTION
HYDROGEN ISOTOPES
INTERNAL FRICTION
ISOTOPES
LIGHT NUCLEI
METALS
NEUTRAL-PARTICLE TRANSPORT
NUCLEI
ODD-ODD NUCLEI
RADIATION TRANSPORT
RELAXATION
STABLE ISOTOPES
TANTALUM
TRANSITION ELEMENTS
TRAPPING
TUNNEL EFFECT
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE