Parametric excitation of plasma oscillations in Josephson junctions

Journal Article · Wed Oct 31 23:00:00 EST 1973 · J. Appl. Phys., v. 44, no. 11, pp. 5120-5124

DOI:https://doi.org/10.1063/1.1662102· OSTI ID:4353600

Pedersen, N F; Samuelsen, M R; Saermark, K

A theory is presented for parametric excitation of plasma oscillations in a Josephson junction biased in the zero voltage mode. A threshold curve for the onset of the parametric excitation is deduced via the stability properties of a Mathieu differential equation obtained by a self-consistent linearization procedure. The important parameters turn out to be the plasma frequency and the circuit losses. The results of the calculation are compared with the experiments performed on a Josephson junction analog and good agreement is obtained. It is suggested that the effect should be observable in tunnel junctions, but perhaps less likely in point contacts. (auth)

• Research Organization: Physics Laboratory I, The Technical University of Denmark, DK- 2800 Lyngby, Denmark
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-025453
• OSTI ID: 4353600
• Journal Information: J. Appl. Phys., v. 44, no. 11, pp. 5120-5124, Journal Name: J. Appl. Phys., v. 44, no. 11, pp. 5120-5124; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

*JOSEPHSON JUNCTIONS-- PLASMONS
ENERGY LOSSES
LANGMUIR FREQUENCY
MATHIEU EQUATION
N66300* --Physics (Low Temperature)--Equipment & Devices
PLASMA WAVES
SUPERCONDUCTIVITY
TUNNEL EFFECT