Radiative properties of superconducting Y-Ba-Cu-O thin films

Journal Article · Wed May 01 04:00:00 EDT 1991 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910587· OSTI ID:5277735

Phelan, P E; Tien, C L ^[1]; Flik, M I ^[2]

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1. Univ. of California, Berkeley (USA)
2. Massachusetts Inst. of Tech., Cambridge (USA)

Some applications of thin-film high-temperature superconductors, such as bolometers, radiation shielding, and space-cooled electronics, require knowledge of the superconducting-state radiative properties. At present, no general predictive model of the radiative properties has been presented. In this work, reflectance predictions based on two of the major theories of the superconducting state, the classical Drude-London theory and the quantum-mechanical Mattis-Bardeen theory, are compared with the available experimental data to determine the best method for predicting the radiative properties of thin-film Y-Ba-Cu-O. It is seen that the Mattis-Bardeen theory is more successful than the Drude-London theory in predicting the reflectance. Consequently, approximate formulae for the Mattis-Bardeen theory are developed, thus enhancing the theory's usefulness for engineering calculations.

• OSTI ID: 5277735
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 113:2; ISSN 0022-1481; ISSN JHTRA
• 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
BOLOMETERS
CALCULATION METHODS
CHALCOGENIDES
COOLING
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
EMISSIVITY
FILMS
HIGH-TC SUPERCONDUCTORS
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SHIELDING
SPECTRAL REFLECTANCE
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE PROPERTIES
THERMAL RADIATION
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES