English
Related papers

Related papers: Conductivity of suspended graphene at the Dirac po…

200 papers

We theoretically consider, comparing with the existing experimental literature, the electrical conductivity of gated monolayer graphene as a function of carrier density, temperature, and disorder in order to assess the prospects of…

Mesoscale and Nanoscale Physics · Physics 2013-01-28 S. Das Sarma , E. H. Hwang

In this paper we investigate the electron-phonon contribution to the resistivity of suspended single layer graphene. In-plane as well as flexural phonons are addressed in different temperature regimes. We focus on the intrinsic…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Eros Mariani , Felix von Oppen

A generalized Dirac equation is derived in order to describe charge carriers moving in corrugated graphene, which is the case for temperatures above 10{\deg}K due to the presence of flexural phonons. Such interaction is taken into account…

Materials Science · Physics 2015-10-12 Richard Kerner , Gerardo Naumis

The temperature dependence of the mobility in suspended graphene samples is investigated. In clean samples, flexural phonons become the leading scattering mechanism at temperature $T \gtrsim 10\,\,$K, and the resistivity increases…

The role of electron-phonon interactions is experimentally and theoretically investigated near the saddle point absorption peak of graphene. The differential optical transmission spectra of multiple, non-interacting layers of graphene…

We obtain analytic expressions for the conductivity of pristine (pure) graphene in the framework of the Dirac model using the polarization tensor in (2+1)-dimensions defined along the real frequency axis. It is found that at both zero and…

Materials Science · Physics 2016-07-13 G. L. Klimchitskaya , V. M. Mostepanenko

We present a first-principles study of the temperature- and density-dependent intrinsic electrical resistivity of graphene. We use density-functional theory and density-functional perturbation theory together with very accurate Wannier…

We calculate the effect of the electron-phonon interaction on the electronic density of states (DOS), the quasiparticle properties and on the optical conductivity of graphene. In metals with DOS constant on the scale of phonon energies, the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 J. P. Carbotte , E. J. Nicol , S. G. Sharapov

We investigate the effect of strain and isotopic disorder on thermal transport in suspended graphene by equilibrium molecular dynamics simulations. We show that the thermal conductivity of unstrained graphene, calculated from the…

Materials Science · Physics 2013-08-08 Luiz Felipe C. Pereira , Davide Donadio

Based on first-principles calculations and full iterative solution of the linearized Boltzmann-Peierls transport equation for phonons within three-phonon scattering framework, we characterize the lattice thermal conductivities $\kappa$ of…

Materials Science · Physics 2015-06-30 Youdi Kuang , Lucas Lindsay , Sanqiang Shi , Xinjiang Wang , Ruiqiang Guo , Baoling Huang

We investigate decoherence of an electron in graphene caused by electron-flexural phonon interaction. We find out that flexural phonons can produce dephasing rate comparable to the electron-electron one. The problem appears to be quite…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Konstantin S. Tikhonov , Wei L. Z. Zhao , Alexander M. Finkel'stein

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

The inherent asymmetry of the electric transport in graphene is attributed to Klein tunneling across barriers defined by $\textit{pn}$-interfaces between positively and negatively charged regions. By combining conductance and shot noise…

Mesoscale and Nanoscale Physics · Physics 2019-10-04 Antti Laitinen , G. S. Paraoanu , Mika Oksanen , Monica F. Craciun , Saverio Russo , Edouard Sonin , Pertti Hakonen

Electron--phonon (e--ph) coupling governs electrical resistivity, hot-carrier cooling, and critically, thermal transport in solids. Recent first-principles advances now predict e--ph limited thermal conductivity from d-band metals and…

Materials Science · Physics 2025-11-21 Sina Kazemian , Giovanni Fanchini

Using a first-principles approach we calculate the acoustic electron-phonon couplings in graphene for the transverse (TA) and longitudinal (LA) acoustic phonons. Analytic forms of the coupling matrix elements valid in the long-wavelength…

Materials Science · Physics 2013-11-22 Kristen Kaasbjerg , Kristian S. Thygesen , Karsten W. Jacobsen

To understand the essential properties of Dirac crystals, such as their thermal conductivity, we require models that consider the interaction between Dirac electrons and dispersive acoustic phonons. The exceptionally high thermal…

Mesoscale and Nanoscale Physics · Physics 2024-05-14 Sina Kazemian , Giovanni Fanchini

For graphene (a Dirac material) it has been theoretically predicted and experimentally observed that DC resistivity is proportional to $ T^4$ when the temperature is much less than Bloch- Gr\"{u}neisen ($\Theta_{BG}$) temperature and T…

Strongly Correlated Electrons · Physics 2016-10-18 Luxmi Rani , Navinder Singh

The in-plane acoustic phonon scattering in graphene is solved by considering fully inelastic acoustic phonon scatterings in two-dimensional (2D) Dirac materials for large range of temperature ($T$) and chemical potential ($\mu$). Rigorous…

Mesoscale and Nanoscale Physics · Physics 2020-04-22 Khoe Van Nguyen , Yia-Chung Chang

We develop a theory for the energy relaxation of hot Dirac fermions in graphene. We obtain a generic expression for the energy relaxation rate due to electron-phonon interaction and calculate the power loss due to both optical and acoustic…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Wang-Kong Tse , S. Das Sarma

The ability to transport energy is a fundamental property of the two-dimensional Dirac fermions in graphene. Electronic thermal transport in this system is relatively unexplored and is expected to show unique fundamental properties and to…

Mesoscale and Nanoscale Physics · Physics 2013-08-13 K. C. Fong , Emma Wollman , Harish Ravi , Wei Chen , Aash Clerk , M. D. Shaw , H. G. LeDuc , K. C. Schwab
‹ Prev 1 2 3 10 Next ›