| Issue |
Europhys. Lett.
Volume 36, Number 2, October II 1996
|
|
|---|---|---|
| Page(s) | 135 - 140 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00199-0 | |
| Published online | 01 September 2002 | |
Persistent voltage and vortex dynamics in ring-shaped Josephson arrays
1
Istituto di Fisica, Università di Catania,
viale A. Doria 6, 95129 Catania, Italy
2
Institut für Theoretische Festkörperphysik,
Universtität Karlsruhe, 76128 Karlsruhe, Germany
3
Theoretische Physik, ETH-Hönggerberg,
CH-8093 Zürich, Switzerland
4
Dipartimento di Scienze Fisiche, Università di
Napoli, Mostra d'Oltremare Pad. 19, 80125 Napoli, Italy
5
GNSM (CNR) and INFM, Italy
Received:
17
June
1996
Accepted:
6
September
1996
We study vortex dynamics in a ring-shaped Josephson-junction array with
emphasis on the interaction of the vortex with spinwaves. An offset charge
Qx induces a persistent voltage which depends on the ratio of the
charging to the Josephson coupling energy as well as on the ratio of the phase
coherence length 
for a vortex to the system size. We determine
the temperature dependence of and find an observable persistent
voltage at low temperatures.
PACS: 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects / 72.20.My – Galvanomagnetic and other magnetotransport effects / 73.20.Fz – Weak localization effects (e.g., quantized states)
© EDP Sciences, 1996
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