CURRENT-VOLTAGE CHARACTERISTICS OF YBA2CU3O7 STEP-EDGE JUNCTIONS ON MGO SUBSTRATES

Authors
FENG YJ SHEN YQ MYGIND J PEDERSEN NF WU PH
Citation
Yj. Feng et al., CURRENT-VOLTAGE CHARACTERISTICS OF YBA2CU3O7 STEP-EDGE JUNCTIONS ON MGO SUBSTRATES, Physica. C, Superconductivity, 282, 1997, pp. 2459-2460
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
4
Pages
2459 - 2460
Database
ISI
SICI code
0921-4534(1997)282:<2459:CCOYSJ>2.0.ZU;2-I
Abstract
In this paper, we report the successful fabrication and current-voltag e characteristics of the YBa2Cu3O7 step-edge Josephson junctions on Mg O substrates. Our junctions were fabricated by patterning the laser de posited YBa2Cu3O7 thin film on MgO substrates with ion-milled steps. I nteger Shapiro steps were observed in the I-V characteristics up to 1 THz under 72 GHz external microwave irradiation. We also estimated the effective shunting capacitance from the voltage of the Fiske resonanc e observed.