High pressure X-ray diffraction study of CaMnO <sub>3</sub> perovskite

20107 citationsJournal Article

Authors

Yingxin Liu · China University of Geosciences (Beijing)

Takumi Kikegawa · High Energy Accelerator Research Organization

Guanghai Shi · China University of Geosciences (Beijing)

Abstract

Using a diamond anvil cell device and synchrotron radiation, the in-situ high-pressure structure of CaMnO3 has been investigated. In the pressure up to 36.5 GPa, no pressure-induced phase transition is observed. The pressure dependence on the lattice parameters of CaMnO3 is reported, and the relationship of the axial compression coefficients is βa > βc > βb. The isothermal bulk modulus K298 = 224 (25) GPa is also obtained by fitting the pressure-volume data using the Murnaghan equation of state.

Topics & Keywords

Magnetic and transport properties of perovskites and related materials High-pressure geophysics and materials Thermal Expansion and Ionic Conductivity

Publication Details

Published in: Chinese Physics C

Volume 34, Issue 7, pp. 1025-1028

DOI: 10.1088/1674-1137/34/7/018

Field-Weighted Citation Impact: 0.27

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High pressure X-ray diffraction study of CaMnO <sub>3</sub> perovskite

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Abstract

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Publication Details