Abstract Co-doped Pb(Mg1/3Nb2/3)O3–32PbTiO3 (Co-doped PMN–32PT) single crystals were grown by a flux method. The phase structure, dielectric, piezoelectric, ferroelectric and magnetodielectric coupling properties of the crystals were characterized. The result of X-ray diffraction showed Co-doped PMN-32PT single crystal was perovskite phase. The dielectric properties of the Co-doped PMN-32PT single crystal along [001]-orientation has a higher rhombohedral-tetragonal phase transition temperature (Trt~107 °C) and larger coercive field (EC~7.91 kV/cm) than the [001] oriented PMN-32PT single crystal. The piezoelectric constant d33 is 1200 pC/N. Meanwhile, Under the external magnetic field, Co-doped PMN-32PT single crystal has negative magnetodielectric coupling effect.

中文翻译：

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Co掺杂PMN-32PT铁电单晶的电磁耦合特性

摘要 Co掺杂的Pb(Mg1/3Nb2/3)O3-32PbTiO3（Co-掺杂的PMN-32PT）单晶采用助熔法生长。表征了晶体的相结构、介电、压电、铁电和磁介电耦合特性。X射线衍射结果表明，Co掺杂的PMN-32PT单晶为钙钛矿相。Co掺杂PMN-32PT单晶沿[001]取向的介电性能比[001]取向具有更高的菱形-四方相变温度（Trt~107°C）和更大的矫顽场（EC~7.91 kV/cm）。 001]定向PMN-32PT单晶。压电常数 d33 为 1200 pC/N。同时，在外磁场作用下，Co掺杂的PMN-32PT单晶具有负磁介电耦合效应。