The equation of state of PbTiO3 up to 37 GPa: A synchrotron x-ray powder diffraction study

A. Sani; M. Hanfland; D. Levy

doi:10.1088/0953-8984/14/44/340

The equation of state of PbTiO₃ up to 37 GPa: A synchrotron x-ray powder diffraction study

A. Sani
, M. Hanfland
, D. Levy

European Synchrotron Radiation Facility
University of Turin

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

High-pressure synchroton x-ray powder diffraction patterns were collected using ID09 of ESRF (Grenoble, France) for a powder sample of PbTiO₃, placed in a diamond anvil cell. The patterns were collected at room temperature using nitrogen (up to 37 GPa) and methanol-ethanol solution (up to 7 GPa) as pressure-transmitting media. The bulk moduli were calculated for the first time using the Vinet equation of state and they were compared to those of isostructural compounds. The trend of the spontaneous polarization as a function of pressure confirms that the ferroelectric-paraelectric phase transition at 11.2 GPa possesses a second-order character.

Original language	English
Pages (from-to)	10601-10604
Number of pages	4
Journal	Journal of Physics Condensed Matter
Volume	14
Issue number	44 SPEC ISS.
DOIs	https://doi.org/10.1088/0953-8984/14/44/340
State	Published - 11 Nov 2002
Externally published	Yes

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abstract = "High-pressure synchroton x-ray powder diffraction patterns were collected using ID09 of ESRF (Grenoble, France) for a powder sample of PbTiO3, placed in a diamond anvil cell. The patterns were collected at room temperature using nitrogen (up to 37 GPa) and methanol-ethanol solution (up to 7 GPa) as pressure-transmitting media. The bulk moduli were calculated for the first time using the Vinet equation of state and they were compared to those of isostructural compounds. The trend of the spontaneous polarization as a function of pressure confirms that the ferroelectric-paraelectric phase transition at 11.2 GPa possesses a second-order character.",

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N2 - High-pressure synchroton x-ray powder diffraction patterns were collected using ID09 of ESRF (Grenoble, France) for a powder sample of PbTiO3, placed in a diamond anvil cell. The patterns were collected at room temperature using nitrogen (up to 37 GPa) and methanol-ethanol solution (up to 7 GPa) as pressure-transmitting media. The bulk moduli were calculated for the first time using the Vinet equation of state and they were compared to those of isostructural compounds. The trend of the spontaneous polarization as a function of pressure confirms that the ferroelectric-paraelectric phase transition at 11.2 GPa possesses a second-order character.

AB - High-pressure synchroton x-ray powder diffraction patterns were collected using ID09 of ESRF (Grenoble, France) for a powder sample of PbTiO3, placed in a diamond anvil cell. The patterns were collected at room temperature using nitrogen (up to 37 GPa) and methanol-ethanol solution (up to 7 GPa) as pressure-transmitting media. The bulk moduli were calculated for the first time using the Vinet equation of state and they were compared to those of isostructural compounds. The trend of the spontaneous polarization as a function of pressure confirms that the ferroelectric-paraelectric phase transition at 11.2 GPa possesses a second-order character.

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The equation of state of PbTiO₃ up to 37 GPa: A synchrotron x-ray powder diffraction study

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