English
Related papers

Related papers: Rapid technique for preparing conductive graphene-…

200 papers

We present calculations of the thermal and electric linear response in graphene, including disorder in the self-consistent t-matrix approximation. For strong impurity scattering, near the unitary limit, the formation of a band of impurity…

Mesoscale and Nanoscale Physics · Physics 2008-04-29 Tomas Lofwander , Mikael Fogelstrom

Graphene holds great potential for superconductivity due to its pure two-dimensional nature, the ability to tune its carrier density through electrostatic gating, and its unique, relativistic-like electronic properties. At present, we are…

Two different gauge potential methods are engaged to calculate explicitly the spin Hall conductivity in graphene. The graphene Hamiltonian with spin-orbit interaction is expressed in terms of kinematic momenta by introducing a gauge…

Mathematical Physics · Physics 2015-03-17 O. F. Dayi , E. Yunt

In this work, we present a comprehensive investigation of graphene's thermal conductivity using first-principles density functional perturbation theory calculations, with a focus on the phonon and lattice vibrational properties underlying…

Materials Science · Physics 2024-12-25 Archishman Gupta , Ankit Arora

Within the field of spintronics major efforts are directed towards developing applications for spin-based transport devices made fully out of two-dimensional (2D) materials. In this work we present an experimental realization of a…

Mesoscale and Nanoscale Physics · Physics 2022-07-13 Alexey A. Kaverzin , Talieh S. Ghiasi , Avalon H. Dismukes , Xavier Roy , Bart J. van Wees

We report the batch fabrication of graphene field-effect-transistors (GFETs) with nanoperforated graphene as channel. The transistors were cut and encapsulated. The encapsulated GFETs display saturation regions that can be tuned by…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 Mircea Dragoman , Adrian Dinescu , Daniela Dragoman

Since last decade, graphene has materialized itself as one of the phenomenal materials to modern researchers because of its remarkable thermal, optical, electronic, and mechanical properties. Graphene holds enormous potentials for lab on…

Applied Physics · Physics 2019-10-11 Joydip Sengupta , Chaudhery Mustansar Hussain

We report on suspended single-layer graphene deposition by a transfer-printing approach based on polydimethylsiloxane stamps. The transfer printing method allows the exfoliation of graphite flakes from a bulk graphite sample and their…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Sarah Goler , Vincenzo Piazza , Stefano Roddaro , Vittorio Pellegrini , Fabio Beltram , Pasqualantonio Pingue

We demonstrate high efficiency Cooper pair splitting in a graphene-based device. We utilize a true Y-shape design effectively placing the splitting channels closer together: graphene is used as the central superconducting electrode as well…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 I. V. Borzenets , Y. Shimazaki , G. F. Jones , M. F. Craciun , S. Russo , Y. Yamamoto , S. Tarucha

Heterostructures prepared from graphene and fluorographene (FG) using the technology of 2D printing on solid and flexible substrates were fabricated and studied. Excellent stability of printed graphene layers and, to a lesser degree,…

When combined with graphene, hexagonal boron nitride (h-BN) is an ideal substrate and gate dielectric with which to build metalh-BN|graphene field-effect devices. We use first-principles density functional theory (DFT) calculations for…

Materials Science · Physics 2011-11-11 Menno Bokdam , Petr A. Khomyakov , Geert Brocks , Zhicheng Zhong , Paul J. Kelly

More than a decade after the discovery of graphene, ballistic transport in nanostructures based on this intriguing material still represents a challenging field of research in two-dimensional electronics. The presence of rough edges in…

Atomically thin crystals have recently been the focus of attention in particular after the synthesis of graphene, a monolayer hexagonal crystal structure of carbon. In this novel material class the chemically derived graphenes have…

Materials Science · Physics 2015-02-23 H. Sahin , O. Leenaerts , S. K. Singh , F. M. Peeters

The thermal conductivity of suspended single-layer graphene was measured as a function of temperature using Raman scattering spectroscopy on clean samples prepared directly on a prepatterned substrate by mechanical exfoliation without…

Mesoscale and Nanoscale Physics · Physics 2011-03-18 Jae-Ung Lee , Duhee Yoon , Hakseong Kim , Sang Wook Lee , Hyeonsik Cheong

We investigate the temperature dependence of the conductivity in ballistic graphene using Landauer transport theory. We obtain results which are qualitatively in agreement with many features recently observed in transport measurements on…

Mesoscale and Nanoscale Physics · Physics 2009-11-12 Markus Mueller , Matthias Braeuninger , Bjoern Trauzettel

Graphene is a 2D material with appealing electronic and optoelectronic properties. It is a zero-bandgap material with valence and conduction bands meeting in a single point (Dirac point) in the momentum space. Its conductivity can be…

Applied Physics · Physics 2020-03-10 V. Sorianello , G. Contestabile , M. Romagnoli

Superconductivity can be induced in a normal material via the leakage of superconducting pairs of charge carriers from an adjacent superconductor. This so-called proximity effect is markedly influenced by graphene unique electronic…

Conductivity of the defectless, perfect crystal graphene is found at the neutrality point at zero temperature and in the limit of large dielectric constant of the substrate. The steady state of the graphene with weak current is assumed to…

Materials Science · Physics 2009-11-13 A. Kashuba

Increasing energy demands of modern society requires deep understanding of the properties of energy storage materials as well as their performance tuning. We show that the capacitance of graphene oxide (GO) can be precisely tuned using a…

It has been reported that graphite hosts room temperature superconductivity. Here we provide new results that confirm these claims on different samples of highly oriented pyrolytic graphite (HOPG) and commercial flexible graphite gaskets…