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Updated: Aug 26, 2025

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Radiation effects, zero thermal expansion, and pressure-induced phase transition in CsMnCo(CN)6
Hanna L B Boström1, Andrew B Cairns2,3, Muzi Chen2,3
1Max Planck Institute for Solid State Research, Heisenbergstraße 1, D-70569, Stuttgart, Germany. h.bostroem@fkf.mpg.de.
Abstract:
The Prussian blue analogue CsMnCo(CN)6 is studied using powder X-ray and neutron diffraction under variable temperature, pressure, and X-ray exposure. It retains cubic F4̄3m symmetry in the range 85-500 K with minimal thermal expansion, whereas a phase transition to P4̄n2 occurs at ∼2 GPa, driven by octahedral tilting. A small lattice contraction occurs upon increased X-ray dose. Comparisons with related systems indicate that the CsI ions decrease the thermal expansion and suppress the likelihood of phase transformations. The results improve the understanding of the stimuli-responsive behaviour of coordination polymers.
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