Ferroelectric materials are distinguished by a spontaneous macroscopic polarisation that can be reversed by an external electric field. These systems undergo phase transitions that are central to ...
Certain two-dimensional (2D) van der Waals-bonded bilayers (e.g., WTe₂ and h-BN) exhibit “sliding ferroelectricity (SF),” where electric polarization arises from specific stacking configurations ...
Vibrational spectroscopy of lead-free potassium sodium niobate and related perovskite ferroelectrics
The potassium sodium niobate (K x Na 1 −x)NbO 3 (KNN) family with the perovskite structure is a technologically important lead-free piezoelectric material. At first, the nature of end members, the ...
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