On questionable ferroelectric and piezoelectric properties in single crystals

Coexistence of magnetic ordering and ferroelectricity in a Dy-nitronyl nitroxide chain

“…As is known, materials could potentially exhibit ferroelectricity when they crystallize in polar point groups (C s , C 1 , C 2 , C 2v , C 3 , C 3v , C 4 , C 4v , C 6 and C 6v ). [38][39][40] Complex 1 crystallizes in the P2 1 space group belonging to polar point group C 2 , satisfying the essential conditions for the potential manifestation of ferroelectricity. Thus, ferroelectric properties of 1 were explored at room temperature.…”