The First Room-Temperature Ferroelectric Sn Insulator and Its Polarization Switching Kinetics.
basic_science · Level V
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- Record sourced from PubMed, PMID 27797143.
- Also identified by DOI 10.1002/adma.201601288.
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Abstract
Sr<sub>3</sub> Sn<sub>2</sub> O<sub>7</sub> is the first room-temperature ferroelectric Sn insulator with switchable electric polarization. The ferroelastic twin domains are observed using a polarized optical microscope. The polarization hysteresis loop clearly demonstrates the ferroelectric property. Intriguing polarization switching kinetics are observed through an in situ poling process using a dark-field transmission electron microscopy technique.