Ferroelectricity in antiferromagnetic phases of Eu1−xY xMnO3

► An (x,T) phase diagram of the Eu1−xY xMnO3, 0≤x≤0.5 was traced. ► Significant differences with regard to other previous results are reported. ► A re-entrant ferroelectric phase for x=0.2, 0.3 and 0.5 was clearly evidenced.