Anomalous current-voltage characteristics due to macroscopic resonant tunneling in a small Josephson junction

Journal Article · Sat Sep 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.3987· OSTI ID:6473398

Hatakenaka, N; Kurihara, S ^[1]; Takayanagi, H ^[2]

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1. Nippon Telegraph and Telephone Corporation Basic Research Laboratories, Musashino, Tokyo (Japan)
2. Department of Physics, University of California, Berkeley, CA (USA)

Current-voltage characteristics of a small Josephson junction are studied, taking into account quantized energy levels in the Josephson potential. In the energy regions where the Josephson coupling energy is greater than the charging energy at zero temperature, it is predicted that voltage spikes in a usual zero-voltage state branch will appear due to resonant phase slips by macroscopic quantum tunneling. These spikes are very different from those expected by the Bloch oscillation mechanism based on the band motion of the macroscopic variable.

• OSTI ID: 6473398
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 42:7; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
JOSEPHSON JUNCTIONS
TUNNEL EFFECT
CRITICAL CURRENT
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
CURRENTS
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
JUNCTIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
656100* - Condensed Matter Physics- Superconductivity