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相关论文: Magneto-optical response of graphene: probing subs…

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The active photonics based on the two-dimensional material graphene has attracted enormous interests for developing the tunable and compact optical devices with high efficiency. Here we integrate graphene into the Fano-resonant…

光学 · 物理学 2019-07-17 Shuyuan Xiao , Tingting Liu , Chaobiao Zhou , Xiaoyun Jiang , Le Cheng , Yuebo Liu , Zhong Li

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

We report the realization of a synthetic magnetic field for photons and polaritons in a honeycomb lattice of coupled semiconductor micropillars. A strong synthetic field is induced in both the s and p orbital bands by engineering a uniaxial…

介观与纳米尺度物理 · 物理学 2021-01-06 O. Jamadi , E. Rozas , G. Salerno , M. Milićević , T. Ozawa , I. Sagnes , A. Lemaître , L. Le Gratiet , A. Harouri , I. Carusotto , J. Bloch , A. Amo

Motivated by recent experimental findings on the low-energy spectrum of Kekul\'e-patterned graphene, the optoelectronic signatures of graphene superlattices with a spatial modulation that triples the size of the unit cell and folds the…

介观与纳米尺度物理 · 物理学 2021-09-22 Saúl A. Herrera , Gerardo G. Naumis

We study the infrared cyclotron resonance of high mobility monolayer graphene encapsulated in hexagonal boron nitride, and simultaneously observe several narrow resonance lines due to interband Landau level transitions. By holding the…

介观与纳米尺度物理 · 物理学 2018-01-30 B. Jordan Russell , Boyi Zhou , T. Taniguchi , K. Watanabe , Erik A. Henriksen

Interacting electrons in flat bands give rise to a variety of quantum phases. One fundamental aspect of such states is the ordering of the various flavours - such as spin or valley - that the electrons can undergo and the excitation…

介观与纳米尺度物理 · 物理学 2023-05-17 Gelareh Farahi , Cheng-Li Chiu , Xiaomeng Liu , Zlatko Papic , Kenji Watanabe , Takashi Taniguchi , Michael P. Zaletel , Ali Yazdani

It is shown that one can explore the optical conductivity of graphene, together with the ability of controlling its electronic density by an applied gate voltage, in order to achieve resonant coupling between an external electromagnetic…

介观与纳米尺度物理 · 物理学 2015-05-19 Yu. V. Bludov , M. I. Vasilevskiy , N. M. R. Peres

The electronic structure in the vicinity of the 1-heptagonal and 1-pentagonal defects in the carbon graphene plane is investigated. Using a continuum gauge field-theory model the local density of states around the Fermi energy is calculated…

介观与纳米尺度物理 · 物理学 2011-12-06 J. Smotlacha , R. Pincak , M. Pudlak

We establish an analogy between spectra of Dirac fermions in laser fields and an electron spectrum of graphene superlattices formed by static 1D periodic potentials. The general relations between a laser-controlled spectrum where electron…

介观与纳米尺度物理 · 物理学 2015-05-27 Sergey E. Savel'ev , Alexandre S. Alexandrov

In this review article we discuss the recent progress in studying ballistic transport for charge carriers in graphene through highly inhomogenous magnetic field known as magnetic barrier in combination with gate voltage induced…

介观与纳米尺度物理 · 物理学 2013-04-12 Neetu Agrawal , Sankalpa Ghosh , Manish Sharma

When Bloch electrons in a solid are exposed to a strong optical field, they are coherently driven in their respective bands where they acquire a quantum phase as the imprint of the band shape. If an electron approaches an avoided crossing…

光学 · 物理学 2024-05-16 Tobias Weitz , Christian Heide , Peter Hommelhoff

It is known that in two-dimensional relativistic Dirac systems placed in orthogonal uniform magnetic and electric fields, the Landau levels collapse as the applied in-plane electric field reaches a critical value $\pm E_c$. We study this…

介观与纳米尺度物理 · 物理学 2022-08-04 I. O. Nimyi , V. Könye , S. G. Sharapov , V. P. Gusynin

While the Dirac band structure of graphene has established it as a leading platform for ultrafast optoelectronics, its non-perturbative nonlinear response under intense excitation remains poorly understood. Here, we report ultrafast…

光学 · 物理学 2026-04-27 Xiaolong Lv , Yu Zhang , Yuxuan Wei , Chuanshan Tian

Graphene devices require electric contacts with metals, particularly with gold. Scanning tunneling spectroscopy studies of electron local density of states performed on mono-, bi- and tri- graphene layer deposited on metallic conductive…

材料科学 · 物理学 2009-01-05 Z. Klusek , P. Dabrowski , P. Kowalczyk , W. Kozlowski , P. Blake , M. Szybowicz , T. Runka , W. Olejniczak

Certain non-uniform strain applied to graphene flakes has been shown to induce pseudo-Landau levels in the single-particle spectrum, which can be rationalized in terms of a pseudo-magnetic field for electrons near the Dirac points. However,…

介观与纳米尺度物理 · 物理学 2017-01-05 Stephan Rachel , Ilja Goethel , Daniel P. Arovas , Matthias Vojta

The electronic Raman scattering of bulk graphite at zero magnetic field reveals a structureless signal characteristic of a metal. For T<~100 K and B > 2 T, several peaks at energies scaling linearly with magnetic field were observed and…

介观与纳米尺度物理 · 物理学 2008-07-10 A. F. Garcia-Flores , H. Terashita , E. Granado , Y. Kopelevich

The electronic properties of monolayer phosphorene are exotic due to its puckered structure and large intrinsic direct band gap. We derive and discuss its band structure in the presence of a perpendicular magnetic field. Further, we…

介观与纳米尺度物理 · 物理学 2015-07-23 M. Tahir , P. Vasilopoulos , F. M. Peeters

We study structural and electronic properties of graphene grown on SiC substrate using scanning tunneling microscope (STM), spot-profile-analysis low energy electron diffraction (SPA-LEED) and angle resolved photoemission spectroscopy…

介观与纳米尺度物理 · 物理学 2017-07-19 Lunan Huang , Yun Wu , M. T. Hershberger , Daixiang Mou , Ben Schrunk , Michael C. Tringides , Myron Hupalo , Adam Kaminski

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

Interband transitions of electrons in a gapped graphene monolayer are highly stimulated near the Fermi surface when a high-frequency electric wave of weak intensity and a strong constant electric field are superposed in the plane of the…

介观与纳米尺度物理 · 物理学 2024-03-21 Selym Villalba-Chávez , Oliver Mathiak , Reinhold Egger , Carsten Müller