Observation of Bifurcations and Hysteresis in Nonlinear NbN Superconducting Microwave Resonators

Author

Abdo, Baleegh ; Arbel-Segev, Eran ; Shtempluck, Oleg ; Buks, Eyal

Author_Institution

Dept. of Electr. Eng. & Microelectron. Res. Center, Technion-Israel Inst. of Technol., Haifa

Volume

16

Issue

4

fYear

2006

Firstpage

1976

Lastpage

1987

Abstract

In this paper, we report some extraordinary nonlinear dynamics measured in the resonance curve of NbN superconducting stripline microwave resonators. Among the nonlinearities observed: abrupt bifurcations in the resonance response at relatively low input powers, asymmetric resonances, multiple jumps within the resonance band, resonance frequency drift, frequency hysteresis, hysteresis loops changing direction and critical coupling phenomenon. Weak links in the NbN grain structure are hypothesized as the source of the nonlinearities

Keywords

bifurcation; critical phenomena; crystal microstructure; hysteresis; niobium compounds; nonlinear dynamical systems; superconducting microwave devices; superconducting resonators; NbN; asymmetric resonances; bifurcations; critical coupling phenomenon; frequency hysteresis; grain structure; hysteresis loops; input powers; multiple jumps; nonlinear dynamics; nonlinear superconducting stripline microwave resonators; resonance band; resonance curve; resonance frequency drift; superconducting microwave resonators; Bifurcation; Geometry; High temperature superconductors; Hysteresis; Resonance; Resonant frequency; Stripline; Superconducting microwave devices; Superconducting transmission lines; Superconductivity; Bifurcations; NbN; hysteresis; jumps; microwave resonators; nonlinear effects;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2006.881823

Filename

4020334