Dynamic properties of superconducting microbridges

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1980

OSTI ID:5632661

Feuer, M D

Superconducting microbridges of Pb alloys were studied in both the uniform thickness and variable thickness geometries. Variable-thickness microbridge of pure In were also studied, to investigate the effect of a long electron mean free path and a long superconducting coherence length. Measurements of the time averaged voltage as a function of the current bias, performed at various power levels of microwave irradiation, yield information about the Josephson effect, Joule heating, and other phenomena of the dynamic (i.e., finite-voltage) state. Critical current data, representative of the static state, were also examined. A photolithographic process incorporating ion-beam etching techniques were developed to permit fabrication of microbridges with all bridge dimensions less than or equal to 500 nm.

• OSTI ID: 5632661
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTS
INDIUM
LEAD ALLOYS
METALS
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY