کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1591857 1515600 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pressure induced phase transition of PbNiO3 from LiNbO3-type to perovskite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Pressure induced phase transition of PbNiO3 from LiNbO3-type to perovskite
چکیده انگلیسی


• Phase transition of PbNiO3 from LiNbO3-type to perovskite-type occurred between 4.4 and 9.5 GPa in the compression process.
• The compression behavior of lattice parameters of the LiNbO3-type and perovskite-type PbNiO3 has also been analyzed.
• The equation of state (EOS) at room temperature of the two types of PbNiO3 has been acquired.

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).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 196, October 2014, Pages 8–12
نویسندگان
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