Ferroelectricity of structural origin in spin-chain compounds Ca${}_3$Co${}_{2-x}$Mn${}_x$O${}_6$

J. Shi, J. D. Song, J. C. Wu +10

We report a systematic study of the structure, electric and magnetic properties of Ca${}_3$Co${}_{2-x}$Mn${}_x$O${}_6$ single crystals with $x=$ 0.72 and 0.26. The DC and AC magnetic susc…