When BiFeO3 layers are confined between TbScO3 layers in an epitaxial superlattice, crystallographically orthogonal voltages can induce reversible, non-volatile switching between polar and antipolar states in BiFeO3. This symmetry switch also leads to marked changes in the nonlinear optical response, piezoresponse and resistivity of the system.
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References
Li, X. et al. Terahertz field-induced ferroelectricity in quantum paraelectric SrTiO3. Science 364, 1079–1082 (2019). This report shows how resonant terahertz pulses can induce a transient polar displacement in SrTiO3.
Xu, R. et al. Strain-induced room-temperature ferroelectricity in SrTiO3 membranes. Nat. Commun. 11, 3141 (2020). This article demonstrates how strain can be used to break symmetry and stabilize ferroelectricity in SrTiO3.
Seyler, K. L. et al. Electrical control of second-harmonic generation in a WSe2 monolayer transistor. Nat. Nanotechnol. 10, 407–411 (2015). An article that shows electric field control of second-harmonic generation (symmetry breaking) in WSe2 monolayers.
Dagotto, E. Nanoscale Phase Separation and Colossal Magnetoresistance Vol. 136, Ch. 17 (Springer, 2003). A textbook describing the importance of mixed-phase coexistence in colossal magnteoresistance.
Ahart, M. et al. Origin of morphotropic phase boundaries in ferroelectrics. Nature 451, 545–548 (2008). An article that details the phase boundaries between distinct symmetry phases.
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This is a summary of: Caretta, L. et al. Non-volatile electric-field control of inversion symmetry. Nat. Mater. https://doi.org/10.1038/s41563-022-01412-0 (2022).
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Orthogonal electric fields turn on and turn off symmetry in BiFeO3 superlattices. Nat. Mater. 22, 159–160 (2023). https://doi.org/10.1038/s41563-022-01413-z
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DOI: https://doi.org/10.1038/s41563-022-01413-z
