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In this paper the problem of surface charge of the lipid membrane immersed in the physiological solution is considered. It is shown that both side of the bilayer phospholipid membrane surface are negatively charged. A self-consistent model…

生物物理 · 物理学 2015-05-14 M. Pekker , M. N. Shneider

I present a compact physics-based model of the drain current, charge and capacitance of graphene field-effect transistors, of relevance for exploration of DC, AC and transient behavior of graphene based circuits. The physical framework is a…

介观与纳米尺度物理 · 物理学 2012-01-04 David Jiménez

In this work, a compact transport model has been developed for monolayer transition metal dichalcogenide (TMDC) channel MOSFET. The analytical model solves the Poisson's equation for the inversion charge density to get the electrostatic…

介观与纳米尺度物理 · 物理学 2018-04-30 Ehsanur Rahman , Abir Shadman , Imtiaz Ahmed , Saeed Uz Zaman Khan , Quazi D. M. Khosru

We develop a modified Poisson-Nernst-Planck model which includes both the long-range Coulomb and short-range hard-sphere correlations in its free energy functional such that the model can accurately describe the ion transport in complex…

计算物理 · 物理学 2021-05-21 Manman Ma , Zhenli Xu , Liwei Zhang

We study the electronic states of graphene in piecewise constant potentials using the continuum Dirac equation appropriate at low energies, and a transfer matrix method. For superlattice potentials, we identify patterns of induced Dirac…

介观与纳米尺度物理 · 物理学 2015-05-18 D. P. Arovas , L. Brey , H. A. Fertig , Eun-Ah Kim , K. Ziegler

We have evaluated the density of interface trap states (Dit) at the surface of a GaN/AlGaN/GaN heterojunction by the previously described gated van der Pauw experiments, as well as by a UV assisted gated van der Pauw method, described in…

材料科学 · 物理学 2019-06-26 E. Ber , B. Osman , D. Ritter

We present an analytical study, validated by numerical simulations, of electroosmotic flow in a Hele-Shaw cell with non-uniform surface charge patterning. Applying the lubrication approximation and assuming thin electric double layer, we…

流体动力学 · 物理学 2015-09-15 Evgeniy Boyko , Shimon Rubin , Amir D. Gat , Moran Bercovici

Surface plasmon polaritons (SPPs) are generated on the graphene surface, and provide a window into the nano-optical and electrodynamic response of their host material and its dielectric environment. An accurate simulation of SPPs presents…

数值分析 · 数学 2025-07-25 Jichun Li , Michael Neunteufel , Li Zhu

Non-local electrostatic interactions associated with the finite solvent size and ion polarizability are investigated within the mean-field linear response theory. To this end, we introduce a field theoretic model of a polar liquid composed…

软凝聚态物质 · 物理学 2015-06-15 Sahin Buyukdagli , Tapio Ala-Nissila

We derive an integral equation describing surface-plasmon polaritons in graphene deposited on a substrate with a planar surface and a dielectric protrusion in the opposite surface of the dielectric slab. We show that the problem is…

介观与纳米尺度物理 · 物理学 2018-05-30 André J. Chaves , Diego R. Costa , Gil A. Farias , Nuno M. R. Peres

The port-Hamiltonian formulation is a powerful method for modeling and interconnecting systems of different natures. In this paper, the port-Hamiltonian formulation in tensorial form of a thick plate described by the Mindlin-Reissner model…

偏微分方程分析 · 数学 2020-10-07 Andrea Brugnoli , Daniel Alazard , Valérie Pommier-Budinger , Denis Matignon

Surface plasmon polaritons (SPPs) have been widely exploited in various scientific communities, ranging from physics, chemistry to biology, due to the strong confinement of light to the metal surface. For many applications it is important…

We develop a general framework for constructing charges associated with diffeomorphisms in gravitational theories using covariant phase space techniques. This framework encompasses both localized charges associated with spacetime…

广义相对论与量子宇宙学 · 物理学 2022-08-31 Venkatesa Chandrasekaran , Eanna E. Flanagan , Ibrahim Shehzad , Antony J. Speranza

The thermal free energy and pressure of dispersion interaction between two graphene sheets described by the Dirac model are calculated using the Lifshitz formula with reflection coefficients expressed via the polarization tensor. The…

介观与纳米尺度物理 · 物理学 2013-02-28 G. L. Klimchitskaya , V. M. Mostepanenko

In this paper, we consider a semiconducting device with an active zone made of a single-layer material. The associated Poisson equation for the electrostatic potential (to be solved in order to perform self-consistent computations) is…

数值分析 · 数学 2023-02-01 Clément Jourdana , Paola Pietra

We propose a new method to calculate polarization induced interfacial charges in semiconductor heterostructures using classical electrostatics applied to real-space band diagrams from first principles calculations and apply it to GaN/AlN…

材料科学 · 物理学 2011-06-14 Rohan Mishra , Oscar D. Restrepo , Siddharth Rajan , Wolfgang Windl

We develop a computational method for modeling electrostatic interactions of arbitrarily-shaped, polarizable objects on colloidal length scales, including colloids/nanoparticles, polymers, and surfactants, dispersed in explicit ion…

软凝聚态物质 · 物理学 2024-06-18 Emily Krucker-Velasquez , James W. Swan , Zachary Sherman

Accurate ab initio modelling of surfaces and interfaces, especially under an applied external potential bias, is important for describing and characterizing various phenomena that occur in electronic, catalytic, and energy storage devices.…

材料科学 · 物理学 2025-06-10 Kartick Ramakrishnan , Gopalakrishnan Sai Gautam , Phani Motamarri

A new compact modeling approach is presented which describes the full current-voltage (I-V) characteristic of high-performance (aggressively scaled-down) tunneling field-effect-transistors (TFETs) based on homojunction direct-bandgap…

介观与纳米尺度物理 · 物理学 2015-11-02 Ramon B. Salazar , Hesameddin Ilatikhameneh , Rajib Rahman , Gerhard Klimeck , Joerg Appenzeller

We present an efficient approach for simulating Coulomb systems confined by planar polarizable surfaces. The method is based on the solution of Poisson equation using periodic Green functions. It is shown that the electrostatic energy…

软凝聚态物质 · 物理学 2017-12-12 Alexandre P. dos Santos , Matheus Girotto , Yan Levin