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In this manuscript the theory and phenomena associated with the Little Effect are introduced as the spin induced orbital dynamics of confined fermions under strong magnetic and thermal environments. This Little Effect is considered in…

材料科学 · 物理学 2007-05-23 Reginald B. Little

We consider the orbital magnetic properties of non-interacting charge carriers in graphene-based nanostructures in the low-energy regime. The magnetic response of such systems results both, frombulk contributions and from confinement…

介观与纳米尺度物理 · 物理学 2014-11-26 Lisa Heße , Klaus Richter

Due to the weak spin-orbit interaction and the peculiar relativistic dispersion in graphene, there are exciting proposals to build spin qubits in graphene nanoribbons with armchair boundaries. However, the mutual interactions between…

介观与纳米尺度物理 · 物理学 2009-11-13 Hsiu-Hau Lin , Toshiya Hikihara , Horng-Tay Jeng , Bor-Luen Huang , Chung-Yu Mou , Xiao Hu

The proximity-induced couplings in graphene due to the vicinity of a ferromagnetic insulator are analyzed. We combine general symmetry principles and simple tight-binding descriptions to consider different orientations of the magnetization.…

介观与纳米尺度物理 · 物理学 2019-10-15 Vo Tien Phong , Niels R. Walet , Francisco Guinea

Carbon-based nanostructures and graphene, in particular, evoke a lot of interest as new promising materials for nanoelectronics and spintronics. One of the most important issue in this context is the impact of external electrodes on…

介观与纳米尺度物理 · 物理学 2012-03-16 S. Krompiewski

Kane and Mele predicted that in presence of spin-orbit interaction graphene realizes the quantum spin Hall state. However, exceptionally weak intrinsic spin-orbit splitting in graphene ($\approx 10^{-5}$ eV) inhibits experimental…

介观与纳米尺度物理 · 物理学 2013-06-18 Gabriel Autès , Oleg V. Yazyev

The effects of electron interaction on the magnetoconductance of graphene nanoribbons (GNRs) are studied within the Hartree approximation. We find that a perpendicular magnetic field leads to a suppression instead of an expected improvement…

介观与纳米尺度物理 · 物理学 2014-02-12 A. A. Shylau , I. V. Zozoulenko , H. Xu , T. Heinzel

The induced-proximity effects of nearly commensurate lattice structure of a graphene layer on Ni(111) and Co(0001) substrates in the AC stacking configuration are addressed through an analytical tight-binding approach within the…

介观与纳米尺度物理 · 物理学 2019-06-05 Mayra Peralta , Ernesto Medina , Francisco Mireles

We study the effects of spin orbit interactions on the low energy electronic structure of a single plane of graphene. We find that in an experimentally accessible low temperature regime the symmetry allowed spin orbit potential converts…

介观与纳米尺度物理 · 物理学 2009-11-10 C. L. Kane , E. J. Mele

We study the effect of a sharply localized magnetic field on the electron transport in a strip (ribbon) of graphene sheet, which allows to give results for the transmission and reflection probability through magnetic barriers. The magnetic…

介观与纳米尺度物理 · 物理学 2015-05-27 Abdulaziz D. Alhaidari , Hocine Bahlouli , Abderrahim El Mouhafid , Ahmed Jellal

We investigate the ground-state properties of triangular graphene nanoflakes with zigzag edge configurations. The description of zero-dimensional nanostructures requires accurate many-body techniques since the widely used density-functional…

强关联电子 · 物理学 2018-01-24 I. Hagymasi , O. Legeza

Spin electronic structure of graphene pi-states and Pt 5d-states for the Graphene/Pt interface has been investigated. Here, we report a large induced spin-orbit splitting (~70-100 meV) of graphene pi-states with formation of non-degenerated…

介观与纳米尺度物理 · 物理学 2013-12-30 A. M. Shikin , A. A. Rybkina , A. G. Rybkin , I. I. Klimovskikh , P. N. Skirdkov , K. A. Zvezdin , A. K. Zvezdin

1-loop quantum corrections are shown to induce large effects on the refraction index n inside a graphene strip in the presence of an external magnetic field B orthogonal to it. To this purpose, we use the tools of Quantum Field Theory to…

高能物理 - 唯象学 · 物理学 2014-07-09 Olivier Coquand , Bruno Machet

Application of graphene-type materials in electrocatalysis is a topic of growing scientific and technological interest. A tremendous amount of research has been carried out in the field of oxygen electroreduction, particularly with respect…

We report a theoretical low-field magnetotransport study unveiling the effect of pseudospin in realistic models of weakly disordered graphene-based materials. Using an efficient Kubo computational method, and simulating the effect of…

介观与纳米尺度物理 · 物理学 2016-03-11 Frank Ortmann , Alessandro Cresti , Gilles Montambaux , Stephan Roche

We address the puzzling weak-coupling perturbative behavior of graphene interaction effects as manifested experimentally, in spite of the effective fine structure constant being large, by calculating the effect of Coulomb interactions on…

介观与纳米尺度物理 · 物理学 2014-09-11 Johannes Hofmann , Edwin Barnes , S. Das Sarma

An influence of a magnetic field on beta-processes is investigated under conditions of a core-collapse supernova. For realistic magnetic fields reachable in astrophysical objects we obtain simple analytical expressions for reaction rates of…

高能天体物理现象 · 物理学 2020-04-08 Alexandra Dobrynina , Igor Ognev

The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to…

介观与纳米尺度物理 · 物理学 2015-05-18 A. A. Kozikov , A. K. Savchenko , B. N. Narozhny , A. V. Shytov

We study the influence of the inverse proximity effect on the superconductivity nucleation in hybrid structures consisting of the semiconducting nanowires placed in contact with a thin superconducting film and discuss the resulting…

超导电性 · 物理学 2018-04-17 Alexander A. Kopasov , Ivan M. Khaymovich , Alexander S. Mel'nikov

Near a magic twist angle, bilayer graphene transforms from a weakly correlated Fermi liquid to a strongly correlated two-dimensional electron system with properties that are extraordinarily sensitive to carrier density and to controllable…

介观与纳米尺度物理 · 物理学 2020-12-14 Eva Y. Andrei , Allan H. MacDonald
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