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Local control of improper ferroelectric domains in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>YMnO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math>
In improper ferroelectrics, polar order emerges as a byproduct of a primary order parameter, such as magnetic ordering or a structural distortion. Therefore, it is believed that improper ferroelectrics react differently to electric field poling compared to usual ferroelectrics . Here, using cryogenic scanning probe microscopy, the authors show for …