Origin of piezoelectric response under a biased scanning probe microscopy tip across a 180<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mo>∘</mml:mo></mml:msup></mml:math>ferroelectric domain wall
Shiming Lei(Hong Kong University of Science and Technology), Venkatraman Gopalan(Pennsylvania State University), Ryan Haislmaier(Pennsylvania State University), Sergei V. Kalinin(University of Tennessee at Knoxville), Tom T. A. Lummen(Pennsylvania State University), Eugene А. Eliseev(National Academy of Sciences of Ukraine), Wenwu Cao(Nanjing University), Anna N. Morozovska(V.E. Lashkaryov Institute of Semiconductor Physics)
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