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相关论文: Tunneling Effect in Gapped Phosphorene through Dou…

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We study the effect of the energy gap on the transmission of fermions in graphene exposed to linearly polarized light as a laser barrier. We determine the energy spectrum, apply boundary conditions at interfaces, and use the transfer matrix…

介观与纳米尺度物理 · 物理学 2023-12-27 Hasna Chnafa , Miloud Mekkaoui , Ahmed Jellal , Abdelhadi Bahaoui

Using first-principles calculations and non-equilibrium Green's function method, we investigate the ballistic thermal transport in single-layer phosphorene. A significant crystallographic orientation dependence of thermal conductance is…

介观与纳米尺度物理 · 物理学 2017-04-18 Zhun-Yong Ong , Yongqing Cai , Gang Zhang , Yong-Wei Zhang

The interplay of strain engineering and photon-assisted tunneling of electrons in graphene is considered for giving rise to atypical transport phenomena. The combination of uniaxial strain and a time-periodic potential barrier helps to…

介观与纳米尺度物理 · 物理学 2021-05-05 Yonatan Betancur-Ocampo , Parisa Majari , Diego Espitia , Francois Leyvraz , Thomas Stegmann

The Klein paradox consists in the perfect tunneling of relativistic particles through high potential barriers. As a curious feature of particle physics, it is responsible for the exceptional conductive properties of graphene. It was…

We numerically investigate the electronic transport properties between two mesoscopic graphene disks with a twist by employing the density functional theory coupled with non-equilibrium Green's function technique. By attaching two graphene…

介观与纳米尺度物理 · 物理学 2020-07-01 Yulei Han , Yafei Ren , Xinlong Dong , Junjie Zeng , Wei Ren , Zhenhua Qiao

We review the fabrication and key transport properties of graphene double layers, consisting of two graphene monolayers placed in close proximity, independently contacted, and separated by an ultra-thin dielectric. We outline a simple band…

介观与纳米尺度物理 · 物理学 2012-06-14 Seyoung Kim , Emanuel Tutuc

We investigate electron transport through a mono-atomic wire which is tunnel coupled to two electrodes and also to the underlying substrate. The setup is modeled by a tight-binding Hamiltonian and can be realized with a scanning tunnel…

介观与纳米尺度物理 · 物理学 2010-11-25 Tomasz Kwapinski , Sigmund Kohler , Peter Hanggi

In this paper, we provide an analytical study of the transmission eigenvalue problem with two conductivity parameters. We will assume that the underlying physical model is given by the scattering of a plane wave for an isotropic scatterer.…

偏微分方程分析 · 数学 2022-09-16 Rafael Ceja Ayala , Isaac Harris , Andreas Kleefeld , Nikolaos Pallikarakis

Phosphorene has been rediscovered recently, establishing itself as one of the most promising two dimensional group-V elemental monolayers with direct band gap, high carrier mobility, and anisotropic electronic properties. In this letter,…

材料科学 · 物理学 2016-03-24 Gaoxue Wang , G. C. Loh , Ravindra Pandey , Shashi P. Karna

The discovery of unusual heat conduction properties of graphene has led to a surge of theoretical and experimental studies of phonon transport in two-dimensional material systems. The rapidly developing graphene thermal field spans from…

材料科学 · 物理学 2016-02-01 Denis L. Nika , Alexander A. Balandin

We extend the conventional transfer matrix method to include anisotropic features for electron transmission in two-dimensional materials, such as breaking reflection law in pseudo-spin phases and wave vectors. This method allows to study…

材料科学 · 物理学 2022-12-15 Erik Díaz-Bautista , Yonatan Betancur-Ocampo , Alfredo Raya

We propose an efficient numerical method to study the transport properties of armchair graphene ribbons in the presence of a generic external potential. The method is based on a continuum envelope-function description with physical boundary…

介观与纳米尺度物理 · 物理学 2014-07-07 Demetrio Logoteta , Paolo Marconcini , Claudio Bonati , Maurizio Fagotti , Massimo Macucci

We investigate the semiclassical electronic transport properties of the bilayer silicene-like system in the presence of charged impurity. The trigonal warping due to the interlayer hopping, and its effect to the band structure of bilayer…

介观与纳米尺度物理 · 物理学 2018-09-18 Chen-Huan Wu

As most materials available in macroscopic quantities, graphene appears in a polycrystalline form and thus contains grain boundaries. In the present work, the effect of uniaxial strain on the electronic transport properties through graphene…

介观与纳米尺度物理 · 物理学 2016-06-07 Viet Hung Nguyen , Trinh Xuan Hoang , Philippe Dollfus , Jean-Christophe Charlier

The influence of magnetic impurities on the transport properties of graphene is investigated in the regime of strong applied electric fields. As a result of electron-hole pair creation, the response becomes nonlinear and dependent on the…

介观与纳米尺度物理 · 物理学 2014-09-02 Arnaud Demion , Alberto D. Verga

We analyze the nonlinear carrier transport in the gated graphene-phosphorene (G-P) hybrid structures - the G-P field-effect transistors (G-P-FETs) using a phenomenological model. This model assumes that due to high carrier densities in the…

材料科学 · 物理学 2018-07-05 V. Ryzhii , M. Ryzhii , D. Svintsov , V. Leiman , P. P. Maltsev , D. S. Ponomarev , V. Mitin , M. S. Shur , T. Otsuji

We study a transmission coefficient of graphene nanoribbons with a top gate which acts as an oblique barrier. Using a Green function method based on the Dirac-like equation, scattering among transverse modes due to the oblique barrier is…

量子物理 · 物理学 2018-02-14 J. H. Oh , D. Ahn

Arrays of dopants in silicon are promising platforms for the quantum simulation of the Fermi-Hubbard model. We show that the simplest model with only on-site interaction is insufficient to describe the physics of an array of phosphorous…

介观与纳米尺度物理 · 物理学 2018-01-11 Nguyen H. Le , Andrew J. Fisher , Eran Ginossar

We solve the Dirac equation, which describes charge massless chiral relativistic carriers in a two-dimensional graphene. We have identified and analysed a novel pseudospin-dependent scattering effect. We compute the tunneling conductance…

介观与纳米尺度物理 · 物理学 2012-11-21 Dima Bolmatov , D. V. Zavialov

We report a first-principles study on the elastic, vibrational, and electronic properties of recently synthesized phosphorene. By calculating Gr\"uneisen parameters, we evaluate the frequency shift of Raman/infrared active modes via…

介观与纳米尺度物理 · 物理学 2015-03-26 Mohammad Elahi , Kaveh Khaliji , Seyed Mohammad Tabatabaei , Mahdi Pourfath , Reza Asgari