Modified TGS single crystals have been grown by doping with Cobalt (II) Pho
sphate in ferroelectric phase. The effects of different amounts of doping e
ntities on the growth habit and P-E hysteresis loop have been investigated.
The experimental results show that while the spontaneous polarization P me
asured on variously doped crystals remains virtually unchanged, the coerciv
e field values differ ir dependence on the growth conditions and grown pyra
midal features. The highest values of the coercive field E-c have been foun
d to fall in the interval 800-900 V/cm.