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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…

Mesoscale and Nanoscale Physics · Physics 2013-06-18 Gabriel Autès , Oleg V. Yazyev

We evaluate the spin-orbit and spin-spin interaction between two fermions in strongly coupled gauge theories in their Coulomb phase. We use the quasi-instantaneous character of Coulomb's law at strong coupling to resum a class of ladder…

High Energy Physics - Theory · Physics 2009-11-10 Edward V. Shuryak , Ismail Zahed

We develop a novel theoretical framework describing polariton-enhanced spin-orbit interaction of light on the surface of two-dimensional media. Starting from the integral formulation of electromagnetic scattering, we exploit the reduced…

Optics · Physics 2018-04-30 A. Ciattoni , C. Rizza , H. W. H. Lee , C. Conti , A. Marini

We present first-principles calculations of the electronic band structure and spin-orbit effects in graphene functionalized with methyl molecules in dense and dilute limits. The dense limit is represented by a 2$\times$2 graphene supercell…

Mesoscale and Nanoscale Physics · Physics 2016-01-27 Klaus Zollner , Tobias Frank , Susanne Irmer , Martin Gmitra , Denis Kochan , Jaroslav Fabian

A recent experiment showed that proximity induced Ising spin-orbit coupling enhances the spin-triplet superconductivity in Bernal bilayer graphene. Here, we show that, due to the nearly perfect spin rotation symmetry of graphene, the…

We have studied electron scattering by out-of-plane (flexural) phonon modes in doped suspended graphene and its effect on charge transport. In the free-standing case (absence of strain) the flexural branch shows a quadratic dispersion…

Materials Science · Physics 2012-09-14 Héctor Ochoa , Eduardo V. Castro , M. I. Katsnelson , F. Guinea

A unified model of molecular and atomistic spin dynamics is presented enabling simulations both in microcanonical and canonical ensembles without the necessity of additional phenomenological spin damping. Transfer of energy and angular…

The key feature of an orbital wave or orbiton is a significant dispersion, which arises from exchange interactions between orbitals on distinct sites. We study the effect of a coupling between orbitons and phonons in one dimension using…

Strongly Correlated Electrons · Physics 2007-08-09 K. P. Schmidt , M. Grüninger , G. S. Uhrig

We study the electronic structure of chiral and achiral graphene nanoribbons with symmetric edges, including curvature and spin-orbit effects. Curved ribbons show spin-split bands, whereas flat ribbons present spin-degenerate bands. We show…

Mesoscale and Nanoscale Physics · Physics 2013-06-07 Hernán Santos , M. C. Muñoz , M. P. López-Sancho , Leonor Chico

We discuss the motion of spin in inertial and gravitational fields. The coupling of spin with rotation and the gravitomagnetic field has already been extensively studied; therefore, we focus here on the inertial and gravitational spin-orbit…

General Relativity and Quantum Cosmology · Physics 2013-09-25 Bahram Mashhoon , Yuri N. Obukhov

Phonons are responsible for limiting both the electron mobility and the spin relaxation time in solids and provide a mechanism for thermal transport. In view of a possible transistor function as well as spintronics applications in graphene…

Mesoscale and Nanoscale Physics · Physics 2011-10-07 Matthias Droth , Guido Burkard

The ability to perform first-principles calculations of electronic and vibrational properties of two-dimensional heterostructures in a field-effect setup is crucial for the understanding and design of next-generation devices. We present…

Materials Science · Physics 2017-09-06 Thibault Sohier , Matteo Calandra , Francesco Mauri

We study the effect exerted by the electrons on the flexural phonons in graphene, accounting for the attractive interaction created by the exchange of electron-hole excitations. Combining the self-consistent computation of the phonon…

Mesoscale and Nanoscale Physics · Physics 2010-03-18 Pablo San-Jose , Jose González , Francisco Guinea

We apply a circularly and linearly polarized terahertz field on a monolayer of graphene taking into account spin-orbit interactions of the intrinsic and Rashba type. It turns out that the field can not only be used to induce a gap in the…

Mesoscale and Nanoscale Physics · Physics 2013-08-29 Andreas Scholz , Alexander López , John Schliemann

In this work spin transport in corrugated armchair graphene nanoribbons (AGNR) is studied. We survey combined effects of spin-orbit interaction and surface roughness, employing the non-equilibrium Green's function formalism and four…

Mesoscale and Nanoscale Physics · Physics 2019-10-29 Zahra Chaghazardi , Shoeib Babaee Touski , Rahim Faez , Mahdi Pourfath

We utilize an exact variational numerical procedure to calculate the ground state properties of a polaron in the presence of a Rashba-like spin orbit interaction. Our results corroborate with previous work performed with the Momentum…

Strongly Correlated Electrons · Physics 2011-07-11 Zhou Li , L. Covaci , M. Berciu , D. Baillie , F. Marsiglio

We report on measurements of quantized conductance in gate-defined quantum point contacts in bilayer graphene that allow the observation of subband splittings due to spin-orbit coupling. The size of this splitting can be tuned from 40 to 80…

Mesoscale and Nanoscale Physics · Physics 2020-05-05 L. Banszerus , B. Frohn , T. Fabian , S. Somanchi , A. Epping , M. Müller , D. Neumaier , K. Watanabe , T. Taniguchi , F. Libisch , B. Beschoten , F. Hassler , C. Stampfer

We theoretically investigate the nonlinear response of bent graphene, in the presence of artificially-enhanced spin-orbit coupling, which can occur either via adatom deposition, or by placing the sheet of bent graphene in contact with a…

Mesoscale and Nanoscale Physics · Physics 2022-11-09 Arttu Nieminen , Marco Ornigotti

A method of regulating spin dynamics of the so-called magnetic graphene is analyzed. Magnetic moments can be incorporated into graphene flakes and graphene ribbons through defects, such as adatoms and vacancies. Local spins can also be…

Mesoscale and Nanoscale Physics · Physics 2020-07-21 V. I. Yukalov , V. K. Henner , T. S. Belozerova

In this work, we study the universal relations for one-dimensional spin-orbital-coupled fermions near both $s$- and $p$-wave resonances using effective field theory. Since the spin-orbital coupling mixes different partial waves, a contact…

Quantum Gases · Physics 2020-10-21 Fang Qin , Pengfei Zhang