Modeling of emergent memory and voltage spiking in ionic transport through angstrom-scale slits
@article{Robin2021ModelingOE, title={Modeling of emergent memory and voltage spiking in ionic transport through angstrom-scale slits}, author={Paul Robin and Nikita Kavokine and Lyd{\'e}ric Bocquet}, journal={Science}, year={2021}, volume={373}, pages={687 - 691} }
Confined flow effects Most memory resistor (“memristor”) systems use electrons as the charge carrier, but it may also be possible to use ionic carriers, similar to the way that neurons work. Robin et al. studied an aqueous electrolyte confined into a pseudo two-dimensional gap between two graphite layers (see the Perspective by Hou and Hou). The authors observed a current–voltage relation that exhibits hysteresis, and the conductance depends on the history of the system, also known as the…
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References
SHOWING 1-10 OF 51 REFERENCES
Molecular streaming and its voltage control in ångström-scale channels
- PhysicsNature
- 2019
Measurements of ionic fluid transport through molecular-sized slit-like channels reveal a transistor-like electrohydrodynamic effect and this highly nonlinear gating of fluid transport under molecular-scale confinement may offer new routes to control molecular and ion transport.
Single-layer MoS2 nanopores as nanopower generators
- PhysicsNature
- 2016
A large, osmotically induced current is observed produced from a salt gradient with an estimated power density of up to 106 watts per square metre—a current that can be attributed mainly to the atomically thin membrane of MoS2, thus demonstrating a self-powered nanosystem.
Ionic Coulomb blockade as a fractional Wien effect
- PhysicsNature Nanotechnology
- 2019
It is found that ionic Coulomb blockade occurs when, upon sufficient confinement, oppositely charged ions form ‘Bjerrum pairs’, and the conduction proceeds through a mechanism reminiscent of Onsager's Wien effect, resulting from the dissociation of Bjerrum pairs that are formed under confinement.
The missing memristor found
- PhysicsNature
- 2008
It is shown, using a simple analytical example, that memristance arises naturally in nanoscale systems in which solid-state electronic and ionic transport are coupled under an external bias voltage.
Size effect in ion transport through angstrom-scale slits
- PhysicsScience
- 2017
This work reports ion transport through ultimately narrow slits that are fabricated by effectively removing a single atomic plane from a bulk crystal, and finds that ions with hydrated diameters larger than the slit size can still permeate through, albeit with reduced mobility.
Coherence Resonance in a Single-Walled Carbon Nanotube Ion Channel
- PhysicsScience
- 2010
It is shown that a single-walled carbon nanotube demonstrates oscillations in electroosmotic current through its interior at specific ranges of electric field that are the signatures of coherence resonance, illustrating how simple ionic transport can generate coherent waveforms within an inherently noisy environment.
Graphene as a sub-nanometer trans-electrode membrane
- PhysicsNature
- 2010
It is shown that when immersed in an ionic solution, a layer of graphene becomes a new electrochemical structure that is called a trans-electrode, which is an ideal substrate for very high resolution, high throughput nanopore-based single-molecule detectors.
Mechanically activated ionic transport across single-digit carbon nanotubes
- BiologyNature Materials
- 2020
This theoretical study relates this behaviour to the complex interplay between electrical and mechanical drivings, and shows that the superlubricity of the carbon nanotubes 4 – 8, 21 is a prerequisite to attaining mechanically activated transport.
Enhanced water permeability and tunable ion selectivity in subnanometer carbon nanotube porins
- ChemistryScience
- 2017
Water permeability in 0.8-nanometer-diameter carbon nanotube porins (CNTPs), which confine water down to a single-file chain, exceeds that of biological water transporters and of wider CNT pores by an order of magnitude.
Memristor-The missing circuit element
- Physics
- 1971
A new two-terminal circuit element-called the memristorcharacterized by a relationship between the charge q(t)\equiv \int_{-\infty}^{t} i(\tau) d \tau and the flux-linkage \varphi(t)\equiv \int_{-…