# Metastable ferroelectricity in optically strained SrTiO3

@article{Nova2019MetastableFI,
title={Metastable ferroelectricity in optically strained SrTiO3},
author={Tobia F. Nova and Ankit S. Disa and Martin Fechner and Andrea Cavalleri},
journal={Science},
year={2019},
volume={364},
pages={1075 - 1079}
}
• Published 26 December 2018
• Physics
• Science
Driving strontium titanate ferroelectric Hidden phases are metastable collective states of matter that are typically not accessible on equilibrium phase diagrams. Nova et al. used infrared pulses to excite higher-frequency lattice modes that drive the crystal into a metastable ferroelectric phase, a phase that can persist for many hours. X. Li et al. used terahertz fields to drive the soft mode that moves the ions in the crystal into the positions they occupy in the new phase. The ferroelectric…
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