Nonlinear microwave properties of superconducting Nb microstrip resonators

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.51.6462· OSTI ID:6583200

Golosovsky, M A ^[1]; Snortland, H J; Beasley, M R ^[2]

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1. Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel) Edward L. Ginzton Laboratories, Stanford University, Stanford, California 94305 (United States)
2. Edward L. Ginzton Laboratories, Stanford University, Stanford, California 94305 (United States)

We present measurements of the nonlinear surface impedance [ital Z][sub [ital S]]=[ital R][sub [ital S]]+[ital iX][sub [ital S]] of thin-film Nb micro- strip resonators. We demonstrate correlation between material properties of the films and the occurrence of nonlinearity. The nonlinearity is characterized using a dimensionless parameter [ital r]=[Delta][ital R][sub [ital S]]([ital P])/[Delta][ital X][sub [ital S]]([ital P]). We make a short survey of the mechanisms of nonlinear electrodynamics of superconductors and demonstrate that our experimental results are best accounted for by the vortex penetration into the grains.

• OSTI ID: 6583200
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:10; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360107 -- Metals & Alloys-- Superconducting Properties-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRODYNAMICS
ELECTROMAGNETIC RADIATION
ELEMENTS
FILMS
IMPEDANCE
MAGNETIC FLUX
METALS
MICROWAVE RADIATION
NIOBIUM
NONLINEAR PROBLEMS
RADIATIONS
SUPERCONDUCTING FILMS
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TRANSITION ELEMENTS