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While it is known that the nature and the arrangement of defects in complexoxides have an impact on the material functionalities little is known oncontrol of superconductivity by oxygen interstitial organization in cuprates.Here we report direct compelling evidence for the control of Tc, bymanipulation of the superconducting granular networks of nanoscale puddles,made of ordered oxygen stripes, in a single crystal of YBa2Cu3O6.5+y withaverage formal hole doping p close to 1/8. Upon thermal treatments we were ableto switch from a first network of oxygen defects striped puddles with OVIIImodulation (qOVIII(a*)=(h+3/8,k,0) and qOVIII(a*)=(h+5/8,k,0)), to secondnetwork characterized by OXVI modulation (qOXVI(a*)=(h+7/16,k,0) andqOXVI(a*)=(h+9/16,k,0)), and finally to a third network with puddles of OVperiodicity (qOV(a*)=(4/10,1,0) and qOV(a*)=(6/10,1,0)). We map the microscopicspatial evolution of the out of plane OVIII, OXVI and OV puddles nano-sizedistribution via scanning micro-diffraction measurements. In particular, wecalculated the number of oxygen chains (n) and the charge density (holesconcentration p) inside each puddle, analyzing areas of 160x80 {\mu}m2, andrecording 12800 diffraction patterns to reconstruct each spatial map. The highspatial inhomogeneity shown by all the reconstructed spatial maps reflects theintrinsic granular structure that characterizes cuprates andiron-chalcogenides, disclosing the presence of several complex networks ofcoexisting superconducting domains with different lattice modulations, chargedensity and different gaps like in the proposed multi-gaps scenario calledsuperstripes.

Networks of superconducting nano-puddles in 1/8 doped YBa2Cu3O6.5+y controlled by thermal manipulation