2009/12/01 by N. G. Pugach, Н. Г. Пугач, E. Goldobin +2 · 47 citations
Materials Science · Mathematics · Physics and Astronomy · #Algorithm #Combinatorics #Condensed matter physics #Discrete mathematics #Domain (mathematical analysis) #Ferromagnetism #Ground state #Josephson effect #Magnetic and transport properties of perovskites and related materials #Mathematical analysis #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Realization (probability) #State (computer science) #Statistics #Superconductivity #Topology (electrical circuits) #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.81.104513
published in Physical Review B 81(10) (American Physical Society)
arxiv created 2009/12/01 · openalex publication_date 2010/03/12 · arxiv updated 2010/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose a method to realize a \ensuremathφ Josephson junction by combining alternating 0 and \ensuremathπ parts (sub junctions) with an intrinsically nonsinusoidal current-phase relation (CPR). Conditions for the realization of the \ensuremathφ ground state are analyzed. It is shown that taking into account the nonsinusoidal CPR for a ``clean'' junction with a ferromagnetic (F) barrier, one can significantly enlarge the domain (regime of suitable F-layer thicknesses) of the \ensuremathφ ground state and make the practical realization of \ensuremathφ Josephson junctions feasible. Such junctions may also have two different stable solutions, such as 0 and \ensuremathπ, 0 and \ensuremathφ, or \ensuremathφ and \ensuremathπ.