The observation of subharmonic peculiarities of I-V characteristic of edge-type Josephson junction chains placed in microwave resonator

Author

Lipatov, A.P. ; Ilyin, V.A. ; Verevkin, A.A.

Author_Institution

Moscow State Pedagogical Univ., Russia

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

3122

Lastpage

3125

Abstract

The spectrums of own Josephson radiation and I-V characteristics of one-dimensional chains of edge-type Nb Josephson junction placed into microwave resonator have been studied. The interaction with the external resonator caused synchronization of junctions forming the chain. This effect was detected experimentally. In the hysteresis region of I-V characteristic we have found the presence of own radiation area. Its bounds are determined by the value of junction characteristic voltage and are practically independent from the value of chain bias voltage. The studies of negative differential resistance region of I-V characteristic shows the presence of thin structure which may be interpreted as a set of subharmonic steps caused by the coupling of Josephson junction own radiation with external microwave resonator.

Keywords

Josephson effect; critical current density (superconductivity); negative resistance; superconducting device testing; superconducting junction devices; superconducting microwave devices; synchronisation; I-V characteristic; edge-type Josephson junction chains; hysteresis region; microwave resonator; negative differential resistance region; one-dimensional chains; radiation area; subharmonic peculiarities; subharmonic steps; synchronization; Electric resistance; Frequency; Hysteresis; Josephson junctions; Mirrors; Niobium; Temperature; Topology; Voltage; Wavelength measurement;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.621993

Filename

621993