| Summary: | New ferroelectric crystals Pb(Er<sub>1/2</sub>Nb<sub>1/2</sub>)-Pb(Mg<sub>1/3</sub>Nb<sub>1/3</sub>)O-PbTiO<sub>3</sub> (PEN-PMN-PT) were grown by using the flux method. Phase structure of the crystals was described by the X-ray diffraction analysis. Dielectric, ferroelectric and optical properties of the PEN-PMN-PT crystals were investigated systematically. Higher Curie temperature (<i>T<sub>c</sub></i> ~ 291 °C) and larger coercive field (<i>E<sub>c</sub></i> ~ 17.6 kV/cm) for the 40PEN-13PMN-47PT can be obtained, respectively, compared with those of the PMN-PT. Moreover, strong green and red emissions can be excited by using the 980 nm laser. The PEN-PMN-PT crystals with these performances have some promising applications in the electromechanical and optical devices.
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