Analysis on the Stability of Josephson Vortices at Tricrystal Boundaries: A 3 phi(0)/2-Flux Case
Susanto, H, van Gils, S A, Doelman, A and Derks, G (2004) Analysis on the Stability of Josephson Vortices at Tricrystal Boundaries: A 3 phi(0)/2-Flux Case Physical Review B, 69 (21).
We consider Josephson vortices at tricrystal boundaries. We discuss the specific case of a tricrystal boundary with a pi junction as one of the three arms. It is recently shown that the static system admits an (n+1/2)phi(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 3phi(0)/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)phi(0) state.
|Divisions :||Faculty of Engineering and Physical Sciences > Mathematics|
|Date :||1 January 2004|
|Identification Number :||10.1103/PhysRevB.69.212503|
|Additional Information :||Published in <i>Physical Review B,</i> Vol. 69, Iss. 21. Copyright 2004 American Physical Society. Click <a href=http://prb.aps.org/>here</a> to access the journal's website.|
|Depositing User :||Mr Adam Field|
|Date Deposited :||27 May 2010 14:08|
|Last Modified :||23 Sep 2013 18:27|
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