Fig. 5From: Thermal Behaviour of Sm0.5 R 0.5FeO3 (R = Pr, Nd) Probed by High-Resolution X-ray Synchrotron Powder DiffractionTemperature evolution of the linear thermal expansion coefficients of Sm0.5Pr0.5FeO3 (a) and Sm0.5Nd0.5FeO3 (b) The corresponding values of TECs in different crystallographic directions are derived by differentiation of the experimental values of the unit-cell dimensions in the temperature range of 298–1173 K. The dashed lines are quid for the eyesBack to article page