Conductivity and microwave response of YBaCuO Josephson junctions on YSZ bicrystal substrate

Author

Meledin, D.V. ; Lipatov, A.P. ; Verevkin, A.A. ; Ilyin, V.A. ; Serjantov, V.A. ; Naumov, A.A.

Author_Institution

Moscow State Pedagogical Inst., Russia

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

3929

Lastpage

3932

Abstract

We have studied conductivity and microwave response of single YBaCuO Josephson junctions (JJ) and their one-dimensional serial arrays. The I-V characteristics, conductivity, differential resistance and detector response of microwave radiation with frequencies F=134 and 550 GHz were measured in the temperature range from 4.2 to 88 K. Total conductivity of YBaCuO JJ was in general determined by the RSJ model with deviations affected by the influence of localized states forming around a bicrystal boundary. Microwave response of YBaCuO JJ contains two components: the Josephson component that predominates at low bias voltage, and observed at high bias voltage component due to the microwave-induced increase of the probability of inelastic resonant quasiparticle tunneling through several localized states, where response voltage changes its sign.

Keywords

Josephson effect; high-temperature superconductors; superconducting arrays; superconducting integrated circuits; superconducting microwave devices; superconductive tunnelling; 134 GHz; 4.2 to 88 K; 550 GHz; I-V characteristics; Josephson junctions; YBaCuO; bias voltage; conductivity; detector response; differential resistance; inelastic resonant quasiparticle tunneling; localized states; microwave response; microwave-induced increase; one-dimensional serial arrays; response voltage; Conductivity measurement; Electrical resistance measurement; Frequency; Josephson junctions; Microwave antenna arrays; Microwave measurements; Radiation detectors; Temperature measurement; Voltage; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.783887

Filename

783887