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27 April 2024

» arxiv » 1310.0567

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The effect of normal metal layers in ferromagnetic Josephson junctions
D. M. Heim ; N. G. Pugach ; M. Yu. Kupriyanov ; E. Goldobin ; D. Koelle ; R. Kleiner ;
Date:	2 Oct 2013
Abstract:	Using the Usadel equation approach, we have calculated the critical current density in ferromagnetic (F) Josephson junctions of different types containing insulating (I) and normal metal (N) layers in the weak link region. Even a thin additional N layer may change the boundary conditions at the SF or IF interface, where S is a superconducting electrode. We show that inserting an N layer may increase the critical current density $J_c$ and shift the 0-$pi$ transition to larger or smaller values of the thickness $d_F$ of the ferromagnet, depending on the boundary parameters.
Source:	arXiv, 1310.0567
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