Controllable plasma energy bands in a one-dimensional crystal of fractional Josephson vortices

Susanto, H. and Goldobin, E. and Koelle, D. and Kleiner, R. and Gils van, S.A. (2005) Controllable plasma energy bands in a one-dimensional crystal of fractional Josephson vortices. Physical Review B: Condensed matter and materials physics, 74 . pp. 174510-174513. ISSN 1098-0121

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Abstract:	We consider a one-dimensional chain of fractional vortices in a long Josephson junction with alternating ±kappa phase discontinuities. Since each vortex has its own eigenfrequency, the intervortex coupling results in eigenmode splitting and in the formation of an oscillatory energy band for plasma waves. The band structure can be controlled at the design time by choosing the distance between vortices or during experiment by varying the topological charge of vortices or the bias current. Thus one can construct an artificial vortex crystal with controllable energy bands for plasmons.
Item Type:	Article
Copyright:	© 2005 The American Physical Society
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Applied Analysis and Mathematical Physics (AAMP)
Link to this item:	http://purl.utwente.nl/publications/53368
Official URL:	http://dx.doi.org/10.1103/PhysRevB.71.174510
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