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相关论文: Electron Transmission Across Normal Metal-Strained…

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Trilayer graphene {(TLG)} consists of three layers of graphene arranged in a particular stacking order. In the case of ABC-ABA-ABC stacking, the layers are arranged in an A-B-C sequence, followed by an A-B-A sequence, and again an A-B-C…

介观与纳米尺度物理 · 物理学 2024-05-28 Abderrahim El Mouhafid , Mouhamadou Hassane Saley , Ahmed Jellal

The interplay between the electron transport in metal/ferroelectric/metal junctions with ultrathin ferroelectric barriers and the polarization state of a barrier is investigated. Using a model which takes into account screening of…

其他凝聚态物理 · 物理学 2009-11-11 M. Ye. Zhuravlev , R. F. Sabirianov , S. S. Jaswal , E. Y. Tsymbal

Long, stable and free-standing linear atomic carbon wires have been carved out from graphene recently [Meyer et al: Nature (London) 2008, 454, 319; Jin et al: Phys: Rev: Lett: 2009, 102, 205501]. They can be considered as the extremely…

原子与分子团簇 · 物理学 2010-10-28 L. Shen , M. G. Zeng , S. W. Yang , C. Zhang , X. F. Wang , Y. P. Feng

The electronic transport of graphene p-n junctions under perpendicular magnetic field is investigated in theory. Under low magnetic field, the transport is determined by the resonant tunneling of Landau levels and conductance versus…

介观与纳米尺度物理 · 物理学 2018-05-11 Shu-Guang Cheng

We study the interplay of Klein tunneling (= interband tunneling) between n-doped and p-doped regions in graphene and Andreev reflection (= electron-hole conversion) at a superconducting electrode. The tunneling conductance of an n-p-n…

介观与纳米尺度物理 · 物理学 2007-06-10 A. Ossipov , M. Titov , C. W. J. Beenakker

Within the tight binding approximation, we study the dependence of the electronic band structure and of the optical conductivity of a graphene single layer on the modulus and direction of applied uniaxial strain. While the Dirac cone…

介观与纳米尺度物理 · 物理学 2010-01-15 F. M. D. Pellegrino , G. G. N. Angilella , R. Pucci

Electrons incident from a normal metal onto a superconductor are reflected back as holes - a process called Andreev reflection. In a normal metal where the Fermi energy is much larger than a typical superconducting gap, the reflected hole…

介观与纳米尺度物理 · 物理学 2016-08-04 D. K. Efetov , L. Wang , C. Handschin , K. B. Efetov , J. Shuang , R. Cava , T. Taniguchi , K. Watanabe , J. Hone , C. R. Dean , P. Kim

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

In this article, we study the transport properties of Graphene-Superconductor-Graphene (GSG) heterojunction where the superconducting region is created in the middle of a graphene sheet, as contrasted to widely studied transport properties…

介观与纳米尺度物理 · 物理学 2023-11-16 Shahrukh Salim , Rahul Marathe , Sankalpa Ghosh

Despite the importance of high thermal conductance (i.e. low thermal resistance) of metal contacts to thermal management of graphene devices, prior reported thermal conductance of metal/graphene interfaces are all relatively low, only 20-40…

介观与纳米尺度物理 · 物理学 2017-05-17 Bin Huang , Yee Kan Koh

Despite its fundamental importance for nano physics and chemistry and potential device applications, the relationship between atomic structure and electronic transport in molecular nanostructures is not well understood. Thus the…

介观与纳米尺度物理 · 物理学 2014-02-04 Alireza Saffarzadeh , Firuz Demir , George Kirczenow

Graphene electrodes provide a suitable alternative to metal contacts in molecular conduction nanojunctions. Here, we propose to use graphene electrodes as a platform for effective photon assisted tunneling through molecular conduction…

介观与纳米尺度物理 · 物理学 2015-06-17 Boris Fainberg

We show that an electrostatically created n-p junction separating the electron and hole gas regions in a graphene monolayer transmits only those quasiparticles that approach it almost perpendicularly to the n-p interface. Such a selective…

介观与纳米尺度物理 · 物理学 2007-05-23 Vadim V. Cheianov , Vladimir I. Fal'ko

We report electronic transport measurements in nanoscale graphene transistors with gold and platinum electrodes whose channel lengths are shorter than 100 nm, and compare them with transistors with channel lengths from 1 \textmu{}m to 50…

介观与纳米尺度物理 · 物理学 2014-06-11 J. H. Worne , H. Gullapalli , C. Galande , P. M. Ajayan , D. Natelson

The Andreev reflection between a normal metal (N) and a heavy-fermion superconductor (HFS) is studied and the boundary conditions for the electron's wave function in the two systems are established in the framework of a two band model for…

超导电性 · 物理学 2008-05-01 M. A. N. Araujo , P. D. Sacramento

This comprehensive study investigates charge transport through the multiple end zigzag edge states of finite-size armchair graphene nanoribbons/boron nitride nanoribbons (n-AGNR/w-BNNR) junctions under a longitudinal electric field, where n…

介观与纳米尺度物理 · 物理学 2024-06-18 David M T Kuo

The low-temperature conductance (G) characteristics between a normal metal and a clean superconductor (S) carrying a supercurrent $I_s$ parallel to the interface is theoretically investigated. Increasing $I_s$ causes lowering and broadening…

超导电性 · 物理学 2009-11-10 Degang Zhang , C. S. Ting , C. -R. Hu

We investigate the spin-dependent transport properties of a ferromagnetic/strained/normal graphene junctions with central region subjected to a magnetic field $B$. An analytical approach, based on Dirac equation, is implemented to obtain…

介观与纳米尺度物理 · 物理学 2019-09-04 Youness Zahidi , Ilham Redouani , Ahmed Jellal , Hocine Bahlouli

We study the transport properties of Dirac electrons across a two-dimensional normal metal-barrier-normal metal (NBN) interfaces in monolayer borophane. We analyse the transmission probability with variation of the width of the barrier…

介观与纳米尺度物理 · 物理学 2020-03-13 Prasun Das , Sangita De Sarkar , Asim Kumar Ghosh

The transport properties of electrons in graphene $p$-$n$ junction with uniform Kekul\'e lattice distortion have been studied using the tight-binding model and the Landauer-B\"uttiker formalism combined with the nonequilibrium Green's…

介观与纳米尺度物理 · 物理学 2023-07-19 Peipei Zhang , Chao Wang , Yu-Xian Li , Lixue Zhai , Juntao Song