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相关论文: Confinement in Gapped Graphene with Magnetic Flux

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Ohm's law describes the proportionality of current density and electric field. In solid-state conductors, Ohm's law emerges due to electron scattering processes that relax the electrical current. Here, we use nitrogen-vacancy center…

介观与纳米尺度物理 · 物理学 2020-03-16 A. Jenkins , S. Baumann , H. Zhou , S. A. Meynell , D. Yang , K. Watanabe , T. Taniguchi , A. Lucas , A. F. Young , A. C. Bleszynski Jayich

We study theoretically the properties of buckled graphene-like materials, such as silicene and germanene, in a strong perpendicular magnetic field and a periodic potential. We analyze how the spin-orbit interaction and the perpendicular…

介观与纳米尺度物理 · 物理学 2015-04-09 Vadym M. Apalkov , Tapash Chakraborty

Scattering of electromagnetic (EM) waves by many small particles (bodies), embedded in a thin layer, is studied. Physical properties of the particles are described by their boundary impedances. The thin layer of depth of the order $O(a)$…

数学物理 · 物理学 2011-01-25 A. G. Ramm

Transmission of low-energetic electrons through two-dimensional materials leads to unique scattering resonances. These resonances contribute to photoemission from occupied bands where they appear as strongly dispersive features of…

材料科学 · 物理学 2017-11-22 M. Krivenkov , D. Marchenko , J. Sánchez-Barriga , O. Rader , A. Varykhalov

We study the system consisted of two electrons in a quantum dot with a three-dimensional harmonic confinement potential under the effect of a magnetic field. Specifically, two different confinement conditions are considered, one isotropic…

强关联电子 · 物理学 2020-08-26 A. M. Maniero , C. R. de Carvalho , F. V. Prudente , Ginette Jalbert

The recent experimental observations of designer Dirac Fermions and topological phases in molecular graphene are addressed theoretically. Using scattering theory we calculate the electronic structure of finite lattices of scattering centers…

介观与纳米尺度物理 · 物理学 2013-12-18 H. Hammar , P. Berggren , J. Fransson

In this work, we report calculation for Compton scattering of a gamma-ray vortex with Laguerre Gaussian wave function on an electron in the framework of the relativistic quantum mechanics. We have found the following unexpected feature. The…

高能物理 - 唯象学 · 物理学 2017-10-30 Tomoyuki Maruyama , Takehito Hayakawa , Toshitaka Kajino

We review the different results obtained in the last decade in the field of Raman scattering of graphene based systems, with an applied magnetic field. Electronic properties of graphene based systems with an applied magnetic field will…

介观与纳米尺度物理 · 物理学 2018-02-14 C. Faugeras , M. Orlita , M. Potemski

We propose a novel method to probe electronic excitations in graphene by monitoring the fluorescence quenching of a semiconductor quantum dot (or a dye molecule) due to the resonance energy transfer to the graphene sheet. We show how the…

介观与纳米尺度物理 · 物理学 2011-08-30 Kirill A. Velizhanin , Anatoly Efimov

This work analyzes the emission and radiation properties of a single optical emitter embedded in a graphene-coated subwavelength wire. We discuss the modifications of the spontaneous emission rate and the radiation efficiency as a function…

光学 · 物理学 2017-08-23 Mauro Cuevas

The spectrum of electron-phonon complexes in a monolayer graphene is investigated in the presence of a perpendicular quantizing magnetic field. Despite the small electron-phonon coupling, usual perturbation theory is inapplicable for…

介观与纳米尺度物理 · 物理学 2013-01-21 J. Zhu , S. M. Badalyan , F. Peeters

The phase picked up by a graphene plasmon upon scattering by an abrupt edge is commonly assumed to be $-\pi$. Here, it is demonstrated that for high plasmon momenta this reflection phase is $\approx -3\pi/4$, virtually independent on either…

介观与纳米尺度物理 · 物理学 2015-06-22 A. Yu. Nikitin , T. Low , L. Martin-Moreno

We propose a protocol to identify spatial hallmarks of viscous electron flow in graphene and other two-dimensional viscous electron fluids. We predict that the profile of the magnetic field generated by hydrodynamic electron currents…

介观与纳米尺度物理 · 物理学 2019-02-06 Karina A. Guerrero-Becerra , Francesco M. D. Pellegrino , Marco Polini

The reflectivity of low energy electrons from graphene on copper substrates is studied both experimentally and theoretically. Well-known oscillations in the reflectivity of electrons with energies 0 - 8 eV above the vacuum level are…

介观与纳米尺度物理 · 物理学 2015-06-15 N. Srivastava , Qin Gao , M. Widom , R. M. Feenstra , Shu Nie , K. F. McCarty , I. V. Vlassiouk

Graphene and few-layer graphene at high bias expose a wealth of phenomena due to the high temperatures reached. With in-situ transmission electron microscopy (TEM) we observe directly how the current modifies the structure, and vice versa.…

介观与纳米尺度物理 · 物理学 2013-01-30 Amelia Barreiro , Felix Boerrnert , Mark H. Ruemmeli , Bernd Buechner , Lieven M. K. Vandersypen

The effects of a propagating sinusoidal out-of-plane flexural deformation in the electronic properties of a tense membrane of graphene are considered within a non-perturbative approach, leading to an electron-ripple coupling. The…

介观与纳米尺度物理 · 物理学 2019-08-29 Ramon Carrillo-Bastos , Gerardo G. Naumis

Particular strain geometry in graphene could leads to a uniform pseudo-magnetic field of order 10T and might open up interesting applications in graphene nano-electronics. Through quantum transport calculations of realistic strained…

介观与纳米尺度物理 · 物理学 2015-03-13 Tony Low , F. Guinea

The current flow along the boundary of graphene stripes in a perpendicular magnetic field is studied theoretically by the nonequilibrium Green's function method. In the case of specular reflections at the boundary, the Hall resistance shows…

介观与纳米尺度物理 · 物理学 2015-11-13 Thomas Stegmann , Axel Lorke

We investigate the electronic confinement in bilayer graphene by topological loops of different shapes. These loops are created by lateral gates acting via gap inversion on the two graphene sheets. For large-area loops the spectrum is well…

介观与纳米尺度物理 · 物理学 2022-01-12 Nassima Benchtaber , David Sánchez , Llorenç Serra

A beam of linearly polarized light transmitted through magnetically biased graphene can have its axis of polarization rotated by several degrees after passing the graphene sheet. This large Faraday effect is due to the action of the…

材料科学 · 物理学 2016-07-06 Jürgen Schiefele , Luis Martin-Moreno , Francisco Guinea