%0 Journal Article %K Temperature %K Electric fields %K Polarization %K Ferroelectricity %K Ferroelectric domains %K Vortex flow %K Electric-field control %K First-order phase transitions %K Oxide superlattices %K Condensed matter physics %K Characterization techniques %K Ferroelectric phasis %K Nonlinear optical response %K Superlattice periods %A A.R Damodaran %A J.D Clarkson %A Z Hong %A H B Liu %A A.K Yadav %A C.T Nelson %A S.-L Hsu %A M.R McCarter %A K.-D Park %A V Kravtsov %A A Farhan %A Y Dong %A Z Cai %A H Zhou %A P Aguado-Puente %A P García-Fernández %A J Íñiguez %A J Junquera %A A Scholl %A M.B Raschke %A L.-Q Chen %A D.D Fong %A Ramamoorthy Ramesh %A L.W Martin %B Nature Materials %D 2017 %G eng %I Nature Publishing Group %P 1003-1009 %R 10.1038/NMAT4951 %T Phase coexistence and electric-field control of toroidal order in oxide superlattices %V 16