Effect of melting of the metallic component on the anomalous far-infrared absorption of superconducting Sn particle composites

Journal Article · Mon Mar 11 04:00:00 EST 1985 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.54.1071· OSTI ID:5826357

Curtin, W A; Spitzer, R C; Ashcroft, N W; Sievers, A J

By means of a simple experimental heat-treatment procedure, the anomalous far-infrared absorption of superconducting Sn particle composites is shown to be associated with clustering. The structural insights thus obtained lead to a new theory in which the composite electric dipole absorption is dominated by poorly conducting clusters and is much larger than that of isolated metal particles. For superconducting particles, the theory predicts the absorption at frequencies above the gap frequency to be larger than in normal state, in agreement with experiment.

• Research Organization: Laboratory of Atomic and Solid State Physics, and Materials Science Center, Cornell University, Ithaca, New York 14853
• OSTI ID: 5826357
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 54:10; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ABSORPTION SPECTRA
ALKALI METAL COMPOUNDS
BROMIDES
BROMINE COMPOUNDS
CHALCOGENIDES
COATINGS
COMPOSITE MATERIALS
DATA
DIPOLES
ELECTRIC DIPOLES
ELEMENTS
ENERGY GAP
EXPERIMENTAL DATA
FILMS
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
INFORMATION
INFRARED SPECTRA
MATERIALS
MELTING
METALS
MULTIPOLES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POTASSIUM BROMIDES
POTASSIUM COMPOUNDS
SOLID CLUSTERS
SPECTRA
SUPERCONDUCTING COMPOSITES
THIN FILMS
TIN