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Observed (open circles), calculated (solid line), and difference (bottom of the figure) intensities of powder neutron diffraction pattern of at . The upper and lower bars indicate the calculated Bragg positions of (sample) and Nb (can), respectively. The insets show observed patterns at 150 and . The indices are given with respect to the -type orthorhombic cell. The reflections marked with asterisks correspond to extra phases in the pattern of (see text).
(Color online) Thermogavimetric curve of CRO during heating and cooling in vacuum.
(a) Temperature variation of lattice parameters and cell volume of . The orthorhombic parameter is divided by for direct comparison with and parameters. (b) Variation of octahedral tilt angles of with temperature (see text for details).
Temperature variation of dc conductivity of CRO under oxygen partial pressure of .
Refined structural parameters of at three representative temperatures.
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