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Electrodynamic properties of the graphene - magnetic semiconductor - graphene superlattice placed in magnetic field have been investigated theoretically in Faraday geometry with taking into account dissipation processes. Frequency and field…

介观与纳米尺度物理 · 物理学 2014-12-31 Dmitry A. Kuzmin , Igor V. Bychkov , Vladimir G. Shavrov

The Landau level spectrum of graphene superlattices is studied using a tight-binding approach. We consider non-interacting particles moving on a hexagonal lattice with an additional one-dimensional superlattice made up of periodic square…

介观与纳米尺度物理 · 物理学 2012-06-28 G. Pal , W. Apel , L. Schweitzer

The field electron emission current from graphene is calculated analytically on a semiclassical model. The unique electronic energy band structure of graphene and the field penetration in the edge from which the electrons emit have been…

材料科学 · 物理学 2012-09-05 Weiliang Wang , Xizhou Qin , Ningsheng Xu , Zhibing Li

We report low temperature high magnetic field scanning tunneling microscopy and spectroscopy of graphene flakes on graphite that exhibit the structural and electronic properties of graphene decoupled from the substrate. Pronounced peaks in…

介观与纳米尺度物理 · 物理学 2009-06-11 Guohong Li , Adina Luican , Eva Y. Andrei

We study the generation of harmonics from graphene under the influence of an artificial magnetic field, generated via bending of a graphene flake. We show how the Landau level structure induced by the pseudomagnetic field breaks the…

介观与纳米尺度物理 · 物理学 2024-06-12 Marco Ornigotti , Luca Ornigotti , Fabio Biancalana

We study theoretically the effect of spin-orbit coupling and sublattice asymmetry in graphene on the spin polarization of photoelectrons. We show that sublattice asymmetry in graphene not only opens a gap in the band structure but in case…

介观与纳米尺度物理 · 物理学 2015-03-17 Peter Rakyta , Andor Kormanyos , Jozsef Cserti

Magneto-optical transitions between Landau levels can provide precise spectroscopic information on the electronic structure and excitation spectra of graphene, enabling probes of substrate and many-body effects. We calculate the…

介观与纳米尺度物理 · 物理学 2015-09-15 L. A. Chizhova , J. Burgdörfer , F. Libisch

We show that the low-energy electronic structure of graphene under a one-dimensional inhomogeneous magnetic field can be mapped into that of graphene under an electric field or vice versa. As a direct application of this transformation, we…

介观与纳米尺度物理 · 物理学 2010-05-31 Liang Zheng Tan , Cheol-Hwan Park , Steven G. Louie

The one-dimensional side gate based on graphene edges shows a significant capability of reducing the channel length of field-effect transistors, further increasing the integration density of semiconductor devices. The nano-scale electric…

The electronic properties of a graphene monolayer in a magnetic and a strain-induced pseudo-magnetic field are studied in the presence of spin-orbit interactions (SOI) that are artificially enhanced, e.g., by suitable adatom deposition. For…

介观与纳米尺度物理 · 物理学 2011-10-14 A. De Martino , A. Hütten , R. Egger

Spin polarization induced by an external electric field in graphene is considered theoretically in the linear response regime. The graphene is assumed to be deposited on a substrate which leads to the spin-orbit interaction of Rashba type.…

介观与纳米尺度物理 · 物理学 2015-06-17 A. Dyrdał , J. Barnaś , V. K. Dugaev

We report on the observation of edge electric currents excited in bi-layer graphene by terahertz laser radiation. We show that the current generation belongs to the class of second order in electric field phenomena and is controlled by the…

It is shown that an attenuated total reflection structure containing a graphene layer can operate as a tunable polarizer of the electromagnetic radiation. The polarization angle is controlled by adjusting the voltage applied to graphene via…

介观与纳米尺度物理 · 物理学 2012-10-31 Yuliy V. Bludov , Mikhail I. Vasilevskiy , Nuno M. R. Peres

Landau level bending near the edge of graphene, described using 2d Dirac equation, provides a microscopic framework for understanding the quantum Hall Effect (QHE) in this material. We review properties of the QHE edge states in graphene,…

介观与纳米尺度物理 · 物理学 2008-04-13 Dmitry A. Abanin , Patrick A. Lee , Leonid S. Levitov

Using an array of coupled microwave resonators arranged in a deformed honeycomb lattice, we experimentally observe the formation of pseudo-Landau levels in the whole crossover from vanishing to large pseudomagnetic field strength. This is…

介观与纳米尺度物理 · 物理学 2020-09-04 Matthieu Bellec , Charles Poli , Ulrich Kuhl , Fabrice Mortessagne , Henning Schomerus

We study the energy spectrum of a graphene bilayer in the presence of transverse electric and magnetic fields. We find that the resulting Landau levels exhibit a nonmonotonic dependence on the electric field, as well as numerous level…

介观与纳米尺度物理 · 物理学 2011-08-16 L. M. Zhang , M. M. Fogler , D. P. Arovas

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

Bilayer graphene in a magnetic field hosts a variety of ordered phases built from eight Landau levels close in energy to the neutrality point. These levels are characterized by orbital $n=0,1$, valley $\xi=+,-$ and spin…

介观与纳米尺度物理 · 物理学 2020-05-25 Brett R. Green , Jorge O. Sofo

The basic properties of $\pi$-electrons near the Fermi level in graphene are reviewed from a point of view of the pseudospin and a gauge field coupling to the pseudospin. The applications of the gauge field to the electron-phonon…

介观与纳米尺度物理 · 物理学 2015-05-13 K. Sasaki , R. Saito

The mechanical and electronic properties of a graphene membrane placed on top of a superlattice of nanopillars are investigated. We use molecular dynamics (MD) simulations to access the deformation fields and the tight-binding approaches to…

介观与纳米尺度物理 · 物理学 2019-02-20 S. P. Milovanovic , L. Covaci , F. M. Peeters