Direct evidence of rigidity loss and self-organisation in silicate glasses

Y. Vaills, T. Qu, M. Micoulaut +2

The Brillouin elastic free energy change $DF$ between thermally annealed and quenched $(N{a}_{2}O{)}_x(Si{O}_2{)}_{1-x}$ glasses is found to decrease linearly at $x>0.23$ (floppy phase), a…