Resonant tunneling transport in YBaCuO/PrBaCuO/YBaCuO edge-type Josephson junctions

Author

Satoh, T. ; Kupriyanov, M.Y. ; Tsai, J.S. ; Hidaka, M. ; Tsuge, H.

Author_Institution

Fundamental Res. Labs., NEC Corp., Tsukuba, Japan

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2612

Lastpage

2615

Abstract

YBaCuO/PrBaCuO/YBaCuO edge-type Josephson junctions were fabricated and their transport properties were studied. Josephson effect in these structure was confirmed by the observation of microwave induced Shapiro steps and periodic magnetic field dependence of the critical current. Normal electron transport in the junctions was well explained by Glazman and Matveev´s theory for hopping transport via localized states. In addition, the supercurrent transport in PrBaCuO is possibly supported by the resonant tunneling via the localized states. We estimated the density of the localized states to be 10/sup 16/ cm/sup -3/.<>

Keywords

Josephson effect; barium compounds; critical currents; high-temperature superconductors; hopping conduction; praseodymium compounds; yttrium compounds; YBaCuO-PrBaCuO-YBaCuO; critical current; edge-type Josephson junctions; hopping transport; localized states; magnetic field; microwave induced Shapiro steps; normal electron transport; resonant tunneling; supercurrent transport; Critical current; Electrons; High temperature superconductors; Josephson effect; Josephson junctions; Magnetic fields; Resonant tunneling devices; Superconducting epitaxial layers; Superconducting microwave devices; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403125

Filename

403125