A PC-based system for studying current-controlled electrical switching in solids

Chatterjee, R.; Acharya, K. V.; Asokan, S.; Titus, S. S. K.

doi:10.1063/1.1144691

Cited by 24 publications

(12 citation statements)

References 2 publications

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“…The threshold voltage is found to decrease with increase of temperature. The observed variation of threshold voltage is similar to those reported in the literature (Mansingh and Dhawan 1983;Chatterjee et al 1994). The thickness dependence of I-V characteristics has been carried out and figure 3 shows the variation of V th with sample thickness.…”

Section: Resultssupporting

confidence: 74%

“…It is clear from the I-V cycles that, after reaching V th an irreversible state having conductivity level more than 6 orders of magnitude higher is obtained. In samples exhibiting current controlled negative resistance (CCNR) behaviour with memory, once set, the low resistance state is retained (Chatterjee et al 1994). Any subsequent I-V cycles exhibit only the high conducting region, CA.…”

Section: Resultsmentioning

confidence: 99%

“…The high field behaviour of these glasses were studied using a custom built PC based system (Chatterjee et al 1994). Samples were mechanically polished using carborundum powder to a thickness of 0⋅15-0⋅3 mm.…”

Section: Methodsmentioning

confidence: 99%

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High field electrical behaviour in lithium-phospho-vanadate glass system

2007

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Abstract. The high field electrical switching behaviour of lithium-phospho-vanadate glasses has been studied by determining the current-voltage characteristics. The investigated glasses exhibit temperature, thickness and composition dependent trends. At low current, the I-V characteristics obey Ohm's law followed by a negative resistance region where the bulk behaviour dominates and at higher values of current the sample goes to a low resistance state. The studied glasses exhibit memory type switching. It is suggested that electrical switching is due to the formation of conducting channels that are due to electronic origin while thermal effects dominate once the channels are formed resulting in crystallization.Keywords. High field electrical behaviour; lithium-phospho-vanadate glass system.

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Section: Resultssupporting

confidence: 74%

Section: Resultsmentioning

confidence: 99%

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High field electrical behaviour in lithium-phospho-vanadate glass system

2007

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“…The current through the sample is varied from 0-2 mA in a programmed manner and the I-V characteristics are obtained. The experimental arrangement is described in detail elsewhere [18]. DSC studies have been performed to evaluate the thermal parameters of these glasses.…”

Section: Methodsmentioning

confidence: 99%

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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“…Electrical switching studies were carried out using a Keithley Sourcemeter (Model: 2410C) interfaced with a PC controlled by Lab VIEW 8.5 (National Instruments, Austin, TX) [30]. Sample polished to a thickness of 0.30 mm was placed between a point contact top electrode and a flat plate bottom electrode using a spring loading mechanism.…”

Section: Methodsmentioning

confidence: 99%