Publication

The classical and quantum dynamics of molecular spins on graphene

Publications associées (47)

Large area suspended graphene for nano-mechanical devices

Mihai Adrian Ionescu, Clara-Fausta Moldovan

To address the need for large area dry graphene transfer techniques in Nanomechanical applications we use transfer printing to suspend large areas of graphene on pre-patterned substrates with cavities. We find that using this method, clean suspended graphe ...

Wiley-V C H Verlag Gmbh2015

Germanene: the germanium analogue of graphene

Magalí Alejandra Lingenfelder, Lei Zhang, Adil Acun

Recently, several research groups have reported the growth of germanene, a new member of the graphene family. Germanene is in many aspects very similar to graphene, but in contrast to the planar graphene lattice, the germanene honeycomb lattice is buckled ...

Institute of Physics2015

Tuning the deposition of molecular graphene nanoribbons by surface functionalization

Klaus Kern, Marko Burghard, Alexander Ronald Hoyer

We show that individual, isolated graphene nanoribbons, created with a molecular synthetic approach, can be assembled on functionalised wafer surfaces treated with silanes. The use of surface groups with different hydrophobicities allows tuning the density ...

Royal Soc Chemistry2015

Electron spin lifetime in chemically synthesized graphene sheets

László Forró, Bálint Náfrádi

Graphene is theoretically expected to be a highly suitable material for spintronic and quantum computation applications. Current experimental reports assign surprisingly low spin lifetimes to graphene and related carbon structures. Recently, we showed a so ...

Wiley-V C H Verlag Gmbh2014

Magnetism of Single Adatoms and Small Adsorbed Clusters Investigated by Means of Low-Temperature STM

Quentin Dubout

This thesis works reports on the magnetic properties of single transition metal atoms and hydrogenated compounds adsorbed on crystal surfaces. It is an experimental study, based on scanning tunneling microscopy (STM), initiated by the project of demonstrat ...

EPFL2013

Determination of minimum conductivity of graphene from contactless microwaves measurements

Mihai Adrian Ionescu, Julien Perruisseau-Carrier, Juan Sebastian Gomez Diaz, Pankaj Sharma

We report a non-direct method to determine the minimum conductivity (sigma(min)) of graphene. The proposed technique is based on the prior characterization of graphene sheet impedance at microwave frequencies using waveguides, and on the subsequent extract ...

Ieee2012

Defects and localization in chemically-derived graphene

László Forró, Arnaud Magrez, Andrzej Sienkiewicz, Richard Gaal, Luka Ciric, Jacim Jacimovic, George Cristian Vaju

We have performed electron spin resonance (ESR) measurements on a large assembly of graphene oxide (GO) and reduced graphene oxide (RGO) flakes. In GO samples the Curie tail is coming from 1.4 x 10(18) cm(-3) of localized spins. Although reduction of GO wa ...

Amer Physical Soc2012

Ultrafast One- and Two-Dimensional UV Transient Absorption Spectroscopy of Haem Proteins

Cristina Consani

Proteins are dynamic macromolecules, which accomplish biological function driven by long-range interactions and global motions. While their biological function is often clear, little is known about the collective interactions which make these systems real ...

EPFL2012

Investigation of Two-Dimensional Electron Gases with Angular Resolved Photoemission Spectroscopy

Isabella Gierz

In this thesis we study the electronic structure of different two-dimensional (2D) electron systems with angular resolved photoemission spectroscopy (ARPES). This technique is based on the photoelectric effect and directly probes the electronic structure o ...

EPFL2011

Electron Spin Resonance Study of Graphene

Luka Ciric

Graphene, a honeycomb lattice of a single atom thick plane of carbon atoms has captivated the attention of physicists, materials scientists, and engineers because of its extraordinary physical properties. These include exceedingly high charge carrier mobil ...

EPFL2011

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