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Related papers: Origami-based spintronics in graphene

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Using the Green function formalism we calculate a current-induced spin polarization of weakly magnetized graphene with Rashba spin-orbit interaction. In a general case, all components of the current-induced spin polarization are nonzero,…

Mesoscale and Nanoscale Physics · Physics 2015-10-13 A. Dyrdal , J. Barnas

The modulation of the optical transmittance in multilayer graphene by means of an electrical signal in the simple configuration of coplanar electrodes is reported. Besides the fundamental frequency of modulation, higher harmonics also…

Mesoscale and Nanoscale Physics · Physics 2013-08-26 J. L. Benítez , D. Mendoza

We show that the pseudospin being an additional degree of freedom for carriers in graphene can be efficiently controlled by means of the electron-electron interactions which, in turn, can be manipulated by changing the substrate. In…

Mesoscale and Nanoscale Physics · Physics 2011-10-05 Maxim Trushin , John Schliemann

Experiments are finally revealing intricate facts about graphene which go beyond the ideal picture of relativistic Dirac fermions in pristine two dimensional (2D) space, two years after its first isolation. While observations of rippling…

Other Condensed Matter · Physics 2009-11-13 Eun-Ah Kim , A. H. Castro Neto

For centuries, cutting and folding the papers with special patterns have been used to build beautiful, flexible and complex three-dimensional structures. Inspired by the old idea of kirigami (paper cutting), and the outstanding properties…

Mesoscale and Nanoscale Physics · Physics 2017-11-03 Bohayra Mortazavi , Aurélien Lherbier , Zheyong Fan , Ari Harju , Timon Rabczuk , Jean-Christophe Charlier

We study various mechanisms of electron transmission across the corrugations in the graphene sheet. The spin dependence of the electron transmission probability in the rippled graphene is found. The electrons mean free path and transmission…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 M. Pudlak , R. G. Nazmitdinov

Graphene is a promising platform for spin-based non-volatile memory, logic, and neuromorphic computing by combining long-distance spin transport with electrical tunability at room temperature. However, advancing beyond passive spin channels…

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…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 K. Sasaki , R. Saito

We propose a unique way to control both bandgap and the magnetic properties of nanoscale graphene, which might prove highly beneficial for application in nanoelectronic and spintronic devices. We have shown that chemical doping by nitrogen…

Materials Science · Physics 2015-05-13 Julia Berashevich , Tapash Chakraborty

Graphene is known to have small intrinsic spin-orbit Interaction (SOI). In this review, we demonstrate that SOIs in graphene can be strongly enhanced by proximity effect when graphene is deposited on the top of transition metal…

Mesoscale and Nanoscale Physics · Physics 2021-12-16 Taro Wakamura , Sophie Guéron , Hélène Bouchiat

Compared to monolayer graphene, electrons in Bernal-stacked bilayer graphene (BLG) have an additional layer degree of freedom, offering a platform for developing {\it layered spintronics} with the help of proximity-induced magnetism. Based…

Mesoscale and Nanoscale Physics · Physics 2022-09-27 Xuechao Zhai , Yaroslav M. Blanter

When Fe, which is a typical ferromagnet using d- or f-orbital states, is combined with 2D materials such as graphene, it offers many opportunities for spintronics. The origin of 2D magnetism is from magnetic insulating behaviors, which…

We investigate the graphs formed from the vertices and creases of an origami pattern that can be folded flat along all of its creases. As we show, this is possible for a tree if and only if the internal vertices of the tree all have even…

Computational Geometry · Computer Science 2019-07-16 David Eppstein

We study the electronic properties of electrons in flat and curved zigzag graphene ribbons using a tight-binding model within the Slater Koster approximation. We find that curvature dramatically enhances the action of spin orbit effects in…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 D. Gosálbez-Martínez , J. J. Palacios , J. Fernández-Rossier

The successful fabrication of single layer graphene has greatly stimulated the progress of the research on graphene. In this article, focusing on the basic electronic and transport properties of graphene nanoribbons (GNRs), we review the…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Bing Huang , Qimin Yan , Zuanyi Li , Wenhui Duan

Spin orbit coupling changes graphene, in principle, into a two-dimensional topological insulator, also known as quantum spin Hall insulator. One of the expected consequences is the existence of spin-filtered edge states that carry…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 D. Gosálbez-Martínez , D. Soriano , J. J. Palacios , J. Fernández-Rossier

We assessed the efficiencies of surface plasmon excitation by an aloof-scattered electron beam on metals and graphene. Graphene is shown to exhibit high energy transfer efficiencies at very low electron kinetic energy requirements. We show…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Kelvin J. A. Ooi , Wee Shing Koh , Hong Son Chu , Dawn T. H. Tan , L. K. Ang

The so-called spin-orbit proximity effect experimentally realized in graphene (G) on several different heavy metal surfaces opens a new perspective to engineer the spin-orbit coupling (SOC) for new generation spintronics devices. Here, via…

Materials Science · Physics 2019-07-10 Jagoda Slawinska , Jorge I. Cerdá

The growing precision of optical and scattering experiments necessitates a better understanding of the influence of damping onto the collective mode of sheet electrons. As spin-polarized systems are of particular interest for spintronic…

Mesoscale and Nanoscale Physics · Physics 2018-08-20 Dominik Kreil , Michaela Haslhofer , Helga M. Böhm

A massive quantum particle on a two-dimensional curved surface experiences a surface-geometry induced attractive potential that is characterized by the radii of curvature at a given point. With bilayer graphene sheets and carbon…

Other Condensed Matter · Physics 2009-10-07 Yogesh N. Joglekar , Avadh Saxena