Ferroelectric hybrid organic-inorganic perovskites (HOIPs) are attracting intense attention owing to their striking performance rivaling with that in perovskite oxides, ease of synthesis, low cost and environmental benignness. Despite the rapid discovery of many ferroelectric HOIPs, the intrinsic thermodynamic driving mechanisms of their ferroelectric transitions remain still not fully understood.
Unveiled the nature of the ferroelectric phase transition of two prototypical hybrid organic-inorganic perovskites
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