1995•Applied Physics LettersRequires access

All-high-T c superconductor rapid-single-flux-quantum circuit operating at ∼30 K

S. Shokhor, B. Nadgorny, M. Gurvitch, В.К. Семенов, Yu. A. Polyakov, Konstantin K. Likharev, S. Hou, Julia M. Phillips

Abstract

We have implemented a simple circuit of the rapid single-flux-quantum (RSFQ) logic family using a single-layer YBa2Cu3O7−x thin-film structure with 14 in-plane Josephson junctions formed by direct electron beam writing. The circuit includes two dc/SFQ converters, two Josephson transmission lines, a complete RS SFQ flip-flop, and an SFQ/dc converter (readout SQUID). Low-frequency testing has shown that the dc-current-biased circuit operates correctly and reliably at T∼30 K, a few degrees below the effective critical temperature of the junctions. Prospects for a further increase of the operation temperature and implementation of more complex RSFQ circuits are discussed in brief.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 60 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Rapid single flux quantum, Josephson effect, Squid, Magnetic flux quantum, Physics, Electronic circuit, Optoelectronics, Superconductivity