Electrical switching and short-range order in As-Te glasses

Titus, S. S. K.; Chatterjee, R.; Asokan, S.; Kumar, Arvind

doi:10.1103/physrevb.48.14650

Cited by 51 publications

(32 citation statements)

References 19 publications

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“…Al x As 40 Te 60−x , and As 40 Se x Te 60−x glasses have switching fields in the range 3-15 kV/cm [23,24]. The switching fields of As x Te 100−x glasses (2.3-5.5 kV/cm) are comparable with present CuGe-Te and Ag-Ge-Te glasses [25]. In As 50 Te 45 I 5 glass the memory switching occurs at a field of 1.5 kV/cm [26].…”

Section: Electrical Switching and Thermal Mechanismsupporting

confidence: 66%

Electrical switching in germanium telluride glasses doped with Cu and Ag

Ramesh

Asokan

Sangunni

et al. 1999

Applied Physics A: Materials Science & Processing

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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

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Section: Electrical Switching and Thermal Mechanismsupporting

confidence: 66%

Electrical switching in germanium telluride glasses doped with Cu and Ag

Ramesh

Asokan

Sangunni

et al. 1999

Applied Physics A: Materials Science & Processing

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“…switching behavior is drastically different from other switchers described elsewhere [11][12][13]. The essential of all of these devices is switching from the low conducting (LC) to high conducting (HC) state.…”

Section: Suchmentioning

confidence: 98%

Field-effect switching in nano-graphite films

Lebedev¹

2014

Journal of Physics and Chemistry of Solids

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The effect of electrical resistivity switching in nano -graphite films is described. In difference with cases published elsewhere the switching in nano -graphite films occurs from stable high conductive to metastable low conductive state. Critical current of switching varies in the range 0.01-0.5A and can be increased up to values appropriate for using of nano -graphite samples in power grids as contact-less current limiters and circuit breakers. The possible mechanisms of switching phenomenon in nano -graphite films are discussed.Physical and electromagnetic properties of the carbon and its derivatives are the subjects of constant interest and extensive studies for many years. Attention has been paid to the switching behavior in the carbon graphite like materials. K. Antonowicz more than 30 years ago investigated the conductive properties of the glassy carbon [1] and its evaporated deposits [2] and has found out the effect of jump of conductivity up to three orders of magnitude. The change of conductivity was reversible, and the relaxation time made some days.B.Z.Jang and L.Zhao also studied the switching behavior of carbonized materials [3]. They study the partially carbonized polyacrylnitride fibbers, which were observed to undergo a resistivity change between 2 and 4 orders of magnitude at a transition temperature typically in the range of 98°C to 200°C. The current-voltage curves exhibited an initial supercurrent-like increase, followed by a rapid drop to a high resistance state, and then a rise in current

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“…Of particular interest are the As x Te 100−x glasses that serve as model systems, but an atomistic understanding of the structure−property relations in it remains obscure due to controversies [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The As 2 Te 3 melt, similar to the Te melt, is a metal at small overheating above the melting temperature [16,17], as a result, cooling-induced crystallization can be avoided only at quenching rates above 100 K/s.…”

Section: Introductionmentioning

confidence: 99%