Nonlinear optical response of granular Y-Ba-Cu-O films

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.12359· OSTI ID:6258172

Culbertson, J C; Strom, U; Wolf, S A; Skeath, P; West, E J; Burns, W K

The nonlinear optical response of a highly granular film of YBa/sub 2.1/Cu/sub 3.4/O/sub 7/minus//ital x// has been interpreted on the basis of the two-dimensional characteristics of the superconducting transition in this film. The behavior of the current-voltage characteristics is consistent with a dissipation mechanism which is dominated by vortex motion as in a Kosterlitz-Thouless transition. The optical response at temperatures near the transition to zero film resistance cannot be interpreted satisfactorily in terms of a realistic thermal model. We believe that nonequilibrium effects contribute to the photoresponse, particularly at low bias currents and low temperatures.

• Research Organization: Naval Research Laboratory, Washington, D.C. 20375(US)
• OSTI ID: 6258172
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:16; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
GRANULAR MATERIALS
MATERIALS
NONLINEAR OPTICS
OPTICS
OXIDES
OXYGEN COMPOUNDS
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES