Title of article :
Pressure induced phase transition of PbNiO3 from LiNbO3-type to perovskite
Author/Authors :
Wang، نويسنده , , Wendan and Wang، نويسنده , , Shanmin and He، نويسنده , , Duanwei and Xu، نويسنده , , Ji-an، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Abstract :
The phase transition of PbNiO3 from LiNbO3 structure to the perovskite structure has been observed between 4.4 and 9.5 GPa, which was investigated by high-pressure synchrotron x-ray powder diffraction at room temperature. Compression behavior of the two phases has been analyzed, and the c axis is the soft direction for LiNbO3-type PbNiO3. The bulk modulus of the LiNbO3-type PbNiO3 is K0=184(3) GPa, K0′=4.5(9), and the perovskite type is K0=166(8) GPa, K0′=4.9(8).
Keywords :
D. Phase transition , A. Perovskite , C. Compressibility , C. Equation of state
Journal title :
Solid State Communications
Journal title :
Solid State Communications
