Compositional dependence of crystallization of As-Te glasses

Thermal and electrical switching studies on Ge20Se80−xBix (1≤x≤13) ternary chalcogenide glassy system

“…Further, it has been suggested by Tanaka [14] that in systems in which medium range interactions are dominant, the rigidity percolation threshold may shift to r h i= 2.67. Many binary glassy systems such as Ge-Te [15], Si-Te [16], Ge-Se [17], Ge-S [15], Si-Se [15] and As-Te [18] and several ternary glassy systems like As-Se-Te [19] and Al-As-Te [20], Ge-Se-Te [21], Ge-As-Se [22,23], Ge-Sb-Se [24] and Ge-In-Se [25], Ge-As-Te [26], etc., show rigidity transformation at r h i= 2.4. In all the above glassy systems, unusual variations in different properties have been found at the mechanical threshold composition.…”

Influence of annealing temperature on the structural and optical properties of As30Te70 thin films

“…The effect of thermal annealing on the optical properties of chalcogenide glasses has been studied and interpreted according to the density of states model in amorphous materials proposed by Mott et al [7]. In addition to the structural and thermal studies [8][9][10][11][12][13][14][15][16], Cornet et al [15,16] explored also the effect of structure and glass-forming ability of As-Te on its physical properties. They found that As-rich glasses have stronger covalent bonds while Te-rich glass shows the presence of threefold coordinated Te sites which enhances its metallic character and weakens the difference between crystalline and glass states.…”

Electrical switching behavior of amorphous Al23Te77 thin film sample

“…Ge-Te-Cu, Ge-Te-Ag, and Ge-As-Te are few examples of ternary tellurium based glasses which exhibit memory switching [18,19]. Apart from that, studies also have been done on tellurium based glasses like As-Te [20], Ge-Te [21] to know the composition dependence of crystallization and the effect of metallic doping on these glasses.…”