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journal id: "physicalxreviewxb"
| Authors | H. Susanto, S.A. van Gils, A. Doelman, G. Derks | | Title | Analysis on the stability of Josephson vortices at tricrystal boundaries: a 3 phi_0/2-flux case |
| Journal | Physical Review B |
| Volume | 69 |
| Year | 2004 |
| Issue | 212503 |
| ISSN | 10980121 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Korteweg-de Vries Institute for Mathematics (KdVI) |
| Keywords | CUPRATE SUPERCONDUCTORS; NETWORK; LOGIC DESIGN; PAIRING SYMMETRY |
| Classification | 31.44 ; 31.81 |
| Abstract | We consider Josephson vortices at tricrystal boundaries. We discuss the specific case of a tricrystal boundary with a junction as one of the three arms. It is recently shown that the static system admits an (n + 1/2)0 flux, n = 0,1,2 [Phys. Rev. B 61, 9122 (2000)]. Here we present an analysis to calculate the linear stability of the admitted states. In particular, we calculate the stability of a 30/2 flux. This state is of interest, since energetically this state is preferable for some combinations of Josephson lengths, but we show that in general it is linearly unstable. Finally, we propose a system that can have a stable (n + 1/2)0 state. |
| Document type | Article |
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