Temperature-dependent pressure-induced softening in Zn(CN)${}_2$

Abstract

We investigate the temperature dependence of the pressure-induced softening in the negative thermal expansion material Zn(CN)${}_2$ using neutron powder diffraction and molecular dynamics simulations. Both the simulation and experiment show that the pressure-induced softening only occurs above a minimum temperature and also weakens at high temperatures.

References in corpus (3)

• Simulation study of pressure and temperature dependence of the negative thermal expansion in Zn(CN)${}_2$
• Pressure-induced softening as a common feature of framework structures that have negative thermal expansion
• Relationship Between Phonons and Thermal Expansion in Zn(CN)2 and Ni(CN)2 from Inelastic Neutron Scattering and Ab-Initio Calculations

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