RF properties of high-T/sub c/ superconductors

Conference · Thu Dec 31 23:00:00 EST 1987

OSTI ID:6690612

Bohn, C L; Delayen, J R; Dos Santos, D I; Lanagan, M T; Shepard, K W

We have investigated the rf properties of high-T/sub c/ superconductors over a wide range of temperature, frequency, and rf field amplitude. We have tested both bulk polycrystalline samples and thick films on silver substrates. At 150 MHz and 4.2 K, we have measured a surface resistance of 18 ..mu../sup /OMEGA// at low rf field and 3.6 m/sup /OMEGA// at an rf field of 270 gauss. All samples showed a strong dependence of the surface resistance on rf field; however, no breakdown of the superconducting state has been observed up to the highest field achieved (320 gauss). 9 refs., 4 figs., 1 tab.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6690612
• Report Number(s): CONF-880812-24; ON: DE89003642
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL TEMPERATURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FREQUENCY DEPENDENCE
MAGNETIC FIELDS
MEASURING METHODS
PHYSICAL PROPERTIES
RF SYSTEMS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE