MICROWAVE CONDUCTIVITY OF SUPERCONDUCTING THIN FILMS.

Abstract

Microwave transmission as a function of temperature through thin superconducting films of pure tin and granular aluminum is reported. The experiments were conducted at 20 GHz, and covered the temperature range 4.2 degrees K to 1.8 degrees K. By a suitable analysis, the magnitude and temperature dependence of the complex conductivity of the film are obtained from the transmission data and related to the impedance of the films. The relative impedance levels for the tin and aluminum films are discussed with relation to use in parametric amplifier circuits. Methods of film preparation for the tin and granular aluminum are presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 31, 1968
Accession Number
AD0673101

Entities

People

  • Robert V. D'aiello

Organizations

  • RCA Corporation

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Amplifiers
  • Conductivity
  • Electronic Amplifier
  • Electronic Equipment
  • Films
  • Impedance
  • Microwave Transmission
  • Microwaves
  • Parametric Amplifiers
  • Thin Films

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Superconducting Magnet Technology