The anomaly of LiNbO3 in the vicinity of 75℃ has been studied by various X-ray diffraction methods.An abrupt change of axial ratio(c/a)was measured,which may be ascribed to alternate rotation of NbO6 octahedron about...The anomaly of LiNbO3 in the vicinity of 75℃ has been studied by various X-ray diffraction methods.An abrupt change of axial ratio(c/a)was measured,which may be ascribed to alternate rotation of NbO6 octahedron about c axis.No change of structure symmetry was observed.展开更多
文摘The anomaly of LiNbO3 in the vicinity of 75℃ has been studied by various X-ray diffraction methods.An abrupt change of axial ratio(c/a)was measured,which may be ascribed to alternate rotation of NbO6 octahedron about c axis.No change of structure symmetry was observed.