Electrical switching in germanium telluride glasses doped with Cu and Ag

Abstract

Abstract. Electrical switching in germanium telluride glasses containing metallic atoms (Cu and Ag) has been investigated. All these glasses are found to exhibit memory switching. The switching fields of these glasses are compared with the thermal parameters evaluated from DSC studies and the results are explained on the basis of the thermal model. The composition dependence of the switching field and the thermal parameters show interesting variations at the critical compositions which correspond to the rigidity percolation and the chemical thresholds of these glasses.Chalcogenide glasses subjected to high electric fields often exhibit non-linear

The composition dependence of electrical switching behavior of Ge7Se93−xSbx glasses

“…It is interesting to note here that earlier studies on Ge-Se-Sb glasses also reveal an increase in the electrical conductivity and a decrease in the activation energy for electrical conduction with the addition of Sb [26,27], which is consistent with observed decrease in the switching voltages. A similar decrease in switching voltage due to increase in the chemical order and due to the metallicity of the additive has been observed in other chalcogenide systems also [19,[28][29][30].…”

High field electrical switching behavior of Ge10Se90−xTlx glasses

“…3). A decrease in V T due to increase in the chemical order and due to metallicity of the additive has been observed in other chalcogenide systems also [19,27,28].…”

Electrical switching and thermal studies on bulk Ge–Te–Bi glasses

“…It is also known that weaker bond, poor structural cross-linking and more lone-pair interactions [21] favor memory switching in telluride glasses. The present studies reveal that Ge 18 Te 82-x Bi x glasses also exhibit memory type electrical switching like many other binary and ternary telluride glasses such as Ge-Te, Si-Te, As-Te, Al-Te, As-Se-Te, Ge-As-Te, Ge-Te-Cu [22][23][24][25][26][27][28][29].…”