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Sequence of phase transitions induced in an array of Josephson junctions by their crossover to pi-state

Source: EPL 89, 17004 (2010); doi:10.1209/0295-5075/89/17004

Issue Date: 1 March 2010

PUBLICATION DATA
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AIP is a member of CrossRef IOP Publishing
S. Korshunov
L. D. Landau Institute for Theoretical Physics - Chernogolovka 142432, Russia.
We show that the transition of Josephson junctions between the conventional and pi 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. ©2010
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