Simulation of Electrical Characteristics of Switching Nanostructures "Pt – TiO – Pt" and "Pt – NiO – Pt" with Memory

Sergeyev, D.; Zhanturina, N.

doi:10.13164/re.2019.0714

Cited by 3 publications

(1 citation statement)

References 21 publications

(22 reference statements)

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“…For further miniaturization, it is necessary to develop new nanomaterials with controlled electrophysical properties [12]. With the discovery of graphene and other two-dimensional atomic crystals, the search for new 2D nanomaterials with unusual electrophysical properties began, as well as the development of various electronic devices based on it [13]- [15]. Various technological methods for synthesizing two-dimensional monoatomic crystals based on elements of the fourth group of the periodic table are already known: germanene [16], silicene [17], borophene [18], stanene [19], phosphorene [20], etc., as well as 2D crystals based on carbides, oxides, chlorides, nitrides, transition metal dichalcogenides, etc.…”

Section: Introductionmentioning

confidence: 99%

Computer Simulation of the Electric Transport Properties of the FeSe Monolayer

Sergeyev

Zhanturina

Myasnikova

et al. 2020

Latvian Journal of Physics and Technical Sciences

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The paper deals with the model research of electric transport characteristics of stressed and non-stressed FeSe monolayers. Transmission spectra, current-voltage characteristic (CVC) and differential conductivity spectra of two-dimensional FeSe nanostructure have been calculated within the framework of the density functional theory and non-equilibrium Green’s functions (DFT + NEGF). It has been shown that the electrophysical properties depend on the geometry of the sample, the substrate, and the lattice constant. On CVC of non-stressed sample in the range from −1.2 V to −1 and from 1.2 V to 1.4 V, a region of negative differential resistance (NDR) has been observed. NDR is at both signs of the applied voltage due to the symmetry of the nanostructure. d2I/dV2 is used to determine the nature of the electron-phonon interaction and the features of quasiparticle tunnelling in stressed and non-stressed samples. The results obtained can be useful for calculating new elements of 2D nanoelectronics.

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Section: Introductionmentioning

confidence: 99%

Computer Simulation of the Electric Transport Properties of the FeSe Monolayer

Sergeyev

Zhanturina

Myasnikova

et al. 2020

Latvian Journal of Physics and Technical Sciences

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Modeling of electrotransport properties of Li-intercalated graphene film

Sergeyev

Duisenova

Embergenov

2021

J. Phys.: Conf. Ser.

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In this work, within the framework of density functional theory combined with the method of nonequilibrium Green’s functions the density of states, transmission spectrum, current-voltage characteristics, and differential conductivity of Li-intercalated graphene (LiC6) have been determined. It is shown that in the energy range of -1.3÷-1.05 eV the quasiparticle transport through the nanostructure is disable. The features of IV- and dI/dV-characteristics of LiC6 in the form of decreasing of resistance in the range of -0.4÷0.4 V were revealed, and in the interval of 0.4÷1.4 V formation of negative differential resistance area, related to scattering of quasiparticles. It is established, that LiC6 nanodevice has 12÷13 ballistic channels and has the maximum amount of conductance 12÷13G0 , where Go is the conductance quantum.

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Electric Transport Properties of a Model Nanojunction “Graphene–Fullerene C60–Graphene”

2020

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In the framework of the density functional theory and method of nonequilibrium Green functions (DFT [Formula: see text] NEGF), the electric transport properties of the model nanojunction “Graphene–Fullerene C[Formula: see text]–Graphene” were studied. The transmission spectra, the density of states, the current–voltage characteristic (CVC) and the differential conductivity of the nanojunction are determined. The appearance of a feature of the DOS nanotransition is revealed. This is due to the fact that the Lowest Unoccupied Molecular Orbital (LUMO) of C[Formula: see text] becomes closer to the Fermi level of metal substrates than its Highest Occupied Molecular Orbital (HOMO). It is shown that Coulomb stairs associated with the Coulomb blockade effect appear on the CVC of the nanotransition. The same changes are observed on the differential conductivity spectrum in the form of eight distinct peak structures arising with period [Formula: see text][Formula: see text]V. The comparison of the electric transport characteristics of single-fullerene nanodevices with various electrode materials (graphene, gold, platinum) are presented. It was found that the voltage period of Coulomb features [Formula: see text] in a nanodevice with graphene electrodes is less than in nanodevices with platinum and gold electrodes. It was revealed that the considered nanotransition has negative differential conductivity. The results obtained can be useful in calculating promising elements of single-electronics.

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Simulation of Electrical Characteristics of Switching Nanostructures "Pt – TiO – Pt" and "Pt – NiO – Pt" with Memory

Cited by 3 publications

References 21 publications

Computer Simulation of the Electric Transport Properties of the FeSe Monolayer

Computer Simulation of the Electric Transport Properties of the FeSe Monolayer

Modeling of electrotransport properties of Li-intercalated graphene film

Electric Transport Properties of a Model Nanojunction “Graphene–Fullerene C60–Graphene”

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