NMR studies of phosphorus in SiPTe and GePTe glasses

Glass Transition Temperature Variation as a Probe for Network Connectivity

“…Note that the stochastic description (and still is accurate in the low modified limit, when the average coordination number of the network is lower than 2.4. Deviation occurs also around the stiffness transition [27], Si -As -Te [28] and Si -P -Te [29]. The solid line represents the inverse of equation (40) with and and and certain data become strongly composition dependent for < r >> 2.4.…”

“…We find again the energy difference (14) and: (29) We have only one free parameter left, the Boltzmann factor involving the bond energy difference This parameter can be determined by considering the derivatives of with respect to and in the limit of low modification:. (30) and a similar form is obtained for the derivative with respect to y, when y = 0.…”