Variable range hopping in finite one-dimensional and anisotropic two-dimensional systems

Nguyen, V. Lien; Dang, D. Toi

doi:10.1016/s0921-4526(03)00021-8

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…However, here we suggest that VRH is responsible for the conduction process and the V o dominates the switching mechanism of the fabricated RRAM devices. According to hopping theory, 33 the I-V curves of RRAM device can be formulated as the eqn (1).…”

Section: Resultsmentioning

confidence: 99%

Retracted Article: High uniformity and improved nonlinearity by embedding nanocrystals in selector-less resistive random access memory

Banerjee

et al. 2015

Nanoscale

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The sneak path problem is one of the major hindrances for the application of high density 3D crossbar resistive random access memory (RRAM). For the selector-less RRAM devices, nonlinear (NL) current-voltage (I-V) characteristics are an alternative approach to minimize the sneak paths. In this work we have demonstrated metallic IrOx nanocrystal (IrOx-NC) based selector-less crossbar RRAM devices in an IrOx/AlOx/IrOx-NC/AlOx/W structure with very reliable hysteresis resistive switching of >10 000 cycles, stable multiple levels, and high temperature (HT) data retention. Moreover, an improvement in the NL behavior has been reported as compared to a pure high-κ AlOx RRAM. The origin of the NL nature has been discussed using the hopping model and Luittenger's 1D metal theory. The nonlinearity can be further improved by structure engineering and will improve the sensing margin of the devices, which is rewarding for crossbar array integration.

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Section: Resultsmentioning

confidence: 99%

Retracted Article: High uniformity and improved nonlinearity by embedding nanocrystals in selector-less resistive random access memory

Banerjee

et al. 2015

Nanoscale

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“…a, which means that the nanowires in the perpendicular directions have a phase that more closely resembles the isotropic or the heterogeneous phase. The flow arranges the NW's into an anisotropic system , which is more pronounced for the 0.25 and 0.35 μm deep gratings. The anisotropic behavior of the NW's will depend on the length of the NW compared to the width of the gratings .…”

Section: Resultsmentioning

confidence: 98%

Modified coffee rings for quasi‐1D interconnects

Martı́nez-Miranda

Blyskal

Michaels

2016

Physica Status Solidi (b)

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Phone: þ1 301 405 0253, Fax: þ1 301 314 2029Silver nanowires (AgNW) in solution with isopropyl alcohol are deposited on photolithographed gratings of varying depth. The deposition results in a modified coffee ring where the flow is redirected along the grating direction. We investigate the anisotropic character of the flow by performing electrical measurements at different concentrations of the nanowires, and for each of the grating depths used. We measure the electrical current along the directions perpendicular and parallel to the gratings. The current anisotropy tends to disappear at higher concentrations. The flow arranges the NW's into a 2D anisotropic arrangement by analyzing how the electrical percolation behaves. By observing the properties this 2D anisotropic arrangement as a function of concentration and grating depth, we can predict where a quasi-1D interconnect can be obtained.

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A Note on Anisotropic Percolation

Lima

Procacci

2004

Lett Math Phys

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Variable range hopping in finite one-dimensional and anisotropic two-dimensional systems

Cited by 6 publications

References 20 publications

Retracted Article: High uniformity and improved nonlinearity by embedding nanocrystals in selector-less resistive random access memory

Retracted Article: High uniformity and improved nonlinearity by embedding nanocrystals in selector-less resistive random access memory

Modified coffee rings for quasi‐1D interconnects

A Note on Anisotropic Percolation

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