Multiferroicity in vanadium-doped La2Ti2O7: insights from first principles Marco Scarrozza, Alessio Filippetti and Vincenzo Fiorentini Eur. Phys. J. B, 86 4 (2013) 128 Published online: 04 April 2013 DOI: 10.1140/epjb/e2013-30672-8