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The contact resistance between two dissimilar semiconductors is determined by the carrier transmission through their interface. Despite the ubiquitous presence of interfaces, quantitative simulation of charge transport across such…

介观与纳米尺度物理 · 物理学 2022-05-25 Qichen Song , Jiawei Zhou , Gang Chen

In charged fluids obeying particle-hole symmetry, such as the Dirac fluid in graphene, charge transport is diffusive despite the presence of ballistically propagating sound waves: sound waves "hydrodynamically decouple" from the slower…

统计力学 · 物理学 2026-01-30 Ewan McCulloch , Romain Vasseur , Sarang Gopalakrishnan

This paper develops a scattering theory for the asymmetric transport observed at interfaces separating two-dimensional topological insulators. Starting from the spectral decomposition of an unperturbed interface Hamiltonian, we present a…

谱理论 · 数学 2025-08-13 Binglu Chen , Guillaume Bal

We develop a generalized theory for the scattering process produced by interface roughness on charge carriers and which is suitable for any semiconductor heterostructure. By exploiting our experimental insights into the three-dimensional…

Studies of the structural, electronic, and optical characteristics of the interfaces between graphene and ZnO polar surfaces is carried out using first-principles simulations. At the interface, a strong van der Waals force is present, and…

材料科学 · 物理学 2023-05-23 H. D. Etea , K. N. Nigussa

We present a simple, unified theory for the self-energy of an ion near a dielectric interface. Our theory accounts for both the short-range (solvation) and long-range (image force) electrostatic forces, charge polarization induced by these…

软凝聚态物质 · 物理学 2015-06-17 Rui Wang , Zhen-Gang Wang

We conceptualise and numerically simulate a resonant metamaterial interface incorporating non-local, or beyond nearest neighbour, coupling that acts as a discrete angular filter. It can be designed to yield perfect transmission at…

应用物理 · 物理学 2024-10-24 Tristan. M. Lawrie , Gregor. Tanner , Gregory. J. Chaplain

We report a peculiar tunneling phenomenon that occurs in lattices with nonreciprocal couplings. The nonreciprocity holds for an inner portion of the lattice, constituting a non-Hermitian interface between outer Hermitian sections. The…

介观与纳米尺度物理 · 物理学 2024-11-11 Sayan Jana , Lea Sirota

Interfaces remain one of the major issues in limiting the understanding and designing polymer nanocomposites due to their complexity and pivotal role in determining the ultimate composites properties. In this study, we take multi-walled…

材料科学 · 物理学 2017-11-20 Yuhan Li , Faxiang Qin , Huan Wang , Hua-Xin Peng

We scrutinize the diagrammatic perturbation theory of noninteracting electrons in a random potential with the aim to accomplish a consistent comprehensive theory of quantum diffusion. Ward identity between the one-electron self-energy and…

无序系统与神经网络 · 物理学 2017-01-17 V. Janiš , J. Kolorenč

Conformal field theories can exchange energy through a boundary interface. Imposing conformal boundary conditions for static interfaces implies energy conservation at the interface. Recently, the reflective and transmitive properties of…

高能物理 - 理论 · 物理学 2024-01-23 Parthajit Biswas , Suchetan Das , Anirban Dinda

We present a closed description of the charge carrier injection process from a conductor into an insulator. Common injection models are based on single electron descriptions, being problematic especially once the amount of charge-carriers…

材料科学 · 物理学 2007-05-23 F. Neumann , Y. A. Genenko , C. Melzer , S. V. Yampolskii , H. von Seggern

Relaxing the assumption of "infinite and homogenous background" the dielectric response function of one-dimensional (1D) semiconducting nanowires embedded in a dielectric environment is calculated. It is shown that high-k (higher than…

介观与纳米尺度物理 · 物理学 2011-02-16 Aniruddha Konar , Tian Fang , Debdeep Jena

We apply the Poynting theorem to the scattering of monochromatic electromagnetic planes waves with normal incidence to the interface of two different media. We write this energy conservation theorem to introduce a natural definition of the…

经典物理 · 物理学 2008-10-30 V. Dominguez-Rocha , C. Zagoya , M. Martinez-Mares

We present a theory for carrier transport in semiconducting nanoscale heterostructures that emphasizes the effects of strain at the interface between two different crystal structures. An exactly solvable model shows that the interface…

介观与纳米尺度物理 · 物理学 2012-06-25 Mark C. Sweeney , Joel D. Eaves

We investigate the subtle effects of diffuse charge on interfacial kinetics by solving the governing equations for ion transport (Nernst-Planck) with realistic boundary conditions representing reaction kinetics (Butler-Volmer) and…

软凝聚态物质 · 物理学 2007-05-23 A. Bonnefont , F. Argoul , M. Z. Bazant

The rapid development of modern energy applications drives an urgent need to enhance the dielectric strength of energy storage dielectrics for higher power density. Interface design is a promising strategy to regulate the crucial charge…

We present a thermodynamic theory of plane coherent solid-solid interfaces in multicomponent systems subject to nonhydrostatic mechanical stresses. The interstitial and substitutional chemical components are treated separately using…

材料科学 · 物理学 2013-04-02 T. Frolov , Y. Mishin

An investigation of the selfconsistent ambipolar charge kinetics across a negatively biased semiconducting plasma-solid interface is presented. For the specific case of a thin germanium layer with nonpolar electron-phonon scattering,…

等离子体物理 · 物理学 2022-04-20 K. Rasek , F. X. Bronold , H. Fehske

Elasticity theory provides an accurate description of the long-wavelength vibrational dynamics of homogeneous crystalline solids, and with supplemental boundary conditions on the displacement field can also be applied to abrupt…

材料科学 · 物理学 2013-05-29 Corey W. Bettenhausen , Wade C. Bowie , Michael R. Geller
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