%0 Journal Article
%A Biskup Zaja, Nevenko
%A Varela del Arco, María
%A Mallet, B.P.P.
%A Khmaladze, J.
%A Marsik, P.
%A Perret, E.
%A Cerreta, A.
%A Orlita, M.
%A Bernhard, C.
%T Granular superconductivity and magnetic-field-driven recovery of macroscopic coherence in a cuprate/manganite multilayer
%D 2016
%@ 2469-9950
%U https://hdl.handle.net/20.500.14352/17753
%X We show that in Pr_(0.5)La_(0.2)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7) (PLCMO/YBCO) multilayers the low temperature state of YBCO is very resistive and resembles that of a granular superconductor or a frustrated Josephson-junction network. Notably, a coherent superconducting response can be restored with a large magnetic field which also suppresses the charge-orbital order in PLCMO. This coincidence suggests that the granular superconducting state of YBCO is induced by the charge-orbital order of PLCMO. The coupling mechanism and the nature of the induced inhomogeneous state in YBCO remain to be understood.
%~