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Compressibility and pressure-induced disorder in superconducting phase-separated<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mn>Cs</mml:mn></mml:mrow><mml:mrow><mml:mn>0.72</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mn>Fe</mml:mn></mml:mrow><mml:mrow><mml:mn>1.57</mml:mn></mml:mrow></mml:msub></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow…
The pressure-dependent diffraction response of the superconducting phase-separated ${Cs}_{0.72}$${Fe}_{1.57}$${Se}_{2}$ (${T}_{\mathrm{c}}$ = 28.5 K) has been studied at room temperature using synchrotron radiation up to the pressure of 19 GPa. The main and secondary phases of ${Cs}_{0.72}$${Fe}_{1.57}$${Se}_{2}$ have been observed in the whole pressure range. The main ordered phase has been …