Magnetoelectric and structural properties of Y2CoMn O6: The role of antisite defects

For financial support we thank the Spanish Ministerio de Economia y Competitividad (MINECO) (Projects No. MAT2012-38213-C02-01 and -02 and No. MAT2015-68760-C1-1 and -2-P, cofunded by the European Regional Development Fund [ERDF] from the European Union) and Diputacion General de Aragon (DGA, project E-69). J.A. Rodriguez-Velamazan acknowledges CSIC for the JAEdoc contract.