1306.2395 (Hong Fang et al.)

Pressure-induced softening as a common feature of framework structures
that have negative thermal expansion    [PDF]

Hong Fang, Martin T. Dove

Results of a series of molecular dynamics simulations of cubic siliceous zeolites suggest that pressure-induced softening -- the phenomenon in which a material becomes progressively more compressible under pressure -- is likely to be a common feature of framework materials that show negative thermal expansion. The correlation between the negative thermal expansion and the pressure-induced softening is investigated on the basis of thermodynamics.

View original: http://arxiv.org/abs/1306.2395