Electrocaloric effect in a ferroelectric Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal - Valant, M; Dunne, LJ; Axelsson, A-K; Alford, NM; Manos, G; Perantie, J; Hagberg, J; Jantunen, H; Dabkowski, A (PHYSICAL REVIEW B, 2010)