| Issue |
EPL
Volume 89, Number 1, January 2010
|
|
|---|---|---|
| Article Number | 17004 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/89/17004 | |
| Published online | 14 January 2010 | |
Sequence of phase transitions induced in an array of Josephson junctions by their crossover to π-state
L. D. Landau Institute for Theoretical
Physics - Chernogolovka 142432, Russia
Received:
23
November
2009
Accepted:
19
December
2009
We show that the transition of Josephson junctions between the conventional and π states caused by the decrease in temperature induces in a regular two-dimensional array of such junctions not just a single phase transition between two phases with different ordering but a sequence of two, three or four phase transitions. The corresponding phase diagrams are constructed for the cases of bipartite (square or honeycomb) and triangular lattices.
PACS: 74.81.Fa – Josephson junction arrays and wire networks / 64.60.De – Statistical mechanics of model systems (Ising model, Potts model, field-theory models, Monte Carlo techniques, etc.)
© EPLA, 2010
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