A theory of π/2 superconducting Josephson junctions
classification
❄️ cond-mat.dis-nn
keywords
junctionjosephsonsuperconductingalongconsidercorrespondscriticalcurrent
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We consider theoretically a Josephson junction with a superconducting critical current density which has a random sign along the junction's surface. We show that the ground state of the junction corresponds to the phase difference equal to \pi/2. Such a situation can take place in superconductor- ferromagnet junction.
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