4.8 Article

The First Room-Temperature Ferroelectric Sn Insulator and Its Polarization Switching Kinetics

Journal

ADVANCED MATERIALS
Volume 29, Issue 2, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201601288

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Funding

  1. Gordon and Betty Moore Foundation's EPiQS Initiative [GBMF4413]
  2. Max Planck POSTECH/KOREA Research Initiative Program through NRF of Korea - MSIP [2011-0031558]

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Sr3Sn2O7 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.

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