NEUTRON DIFFUSE SCATTERING IN LEAD-BASED RELAXOR FERROELECTRICS AND ITS RELATIONSHIP TO THE ULTRA-HIGH PIEZOELECTRICITY  

作　　者：PETER M.GEHRING 

机构地区：[1]NIST Center for Neutron Research National Institute of Standards and Technology 100 Bureau Drive,Gaithersburg,MD 20899-6100,USA

出　　处：《Journal of Advanced Dielectrics》2012年第2期85-112,共28页先进电介质学报（英文）

摘　　要：A brief review is presented that summarizes recent neutron diffuse scattering measurements on single crystal PbMg_(1/3)Nb_(2/3)O_(3)(PMN)and PbZn_(1/3)Nb_(2/3)O_(3)(PZN)doped with PbTiO_(3)(PT).Emphasis is placed on results that suggest that the short-range,polar correlations observed in these systems are connected to the anomalous relaxor dielectric properties,and in particular to the large values of the piezoelectric coe±cient d33 near the morphotropic phase boundary.

关 键 词：RELAXORS PMN PZN diffuse scattering PIEZOELECTRICITY neutron scattering 

分 类 号：O57[理学—粒子物理与原子核物理]