Figure 1
From: Conventional empirical law reverses in the phase transitions of 122-type iron-based superconductors

Selected AD-XRD pattern of EuFe2As2 under various pressures at 12 K.
A pressure-induced isostructural phase transition in EuFe2As2 was observed by the analysis of the staggered shifts of diffraction peak of (110) and (103).