Concept

Endofullerène

Publications associées (48)

Electronic and optical properties of supported C60 molecules studied by scanning tunneling microscopy

This thesis is primarily concerned with optical properties of adsorbed C60 molecules on metal and insulating substrates. These properties were studied on a single-molecule scale, using Scanning Tunneling Microscope-induced light emission spectroscopy (STM- ...

EPFL2005

First-principles molecular-dynamics study of metal-supported nanosystems

Massimiliano Stengel

This thesis is concerned with the theoretical study of the adsorption of molecules and thin films to single-crystal metal surfaces. First-principles electronic calculations are performed in the framework of density functional theory in the local density ap ...

EPFL2004

Dynamics of the Penning Ionization of Fullerene Molecules by Metastable Neon Atoms

Majed Chergui

The collisional energy dependence of the cross section for the Penning ionization of C60 mols. by metastable neon atoms was measured in the 0.035-0.5 eV range in a crossed beam expt. The results show a decreasing trend (.apprx.20%) in the low-energy range ...

2000

Field-Induced Manipulation Of Fullerene Molecules With The Stm - A Self-Consistent Theoretical-Study

Olivier Martin

By applying an appropriate voltage between an STM tip and a metallic substrate, it is possible to induce highly localized electrostatic fields. In this paper, it is shown that the apex of the STM probe, responsible for the resolution, confines an electric ...

Elsevier1995

Ring Currents in Icosahedral C60

Alfredo Pasquarello

A new formulation of the current within the London approximation allows the calculation of ring currents in topologically complex molecules. Application of this theory to C60 demonstrates the existence of remarkable pi-electron ring currents. Paramagnetic ...

1992

Cage effect on the photodissociation of water in xenon matrixes

Majed Chergui

Photodissocn. of H2O in Xe matrixes was investigated by excitation in the first continuum (~A1B1) by using dispersed synchrotron radiation. The dissocn. threshold near 6.4 eV corresponds to a barrier of .apprx.1.3 eV due to repulsive H-Xe pair interactions ...

1991

A model potential for Rydberg states of alkali atoms in rare gas matrixes

Majed Chergui

The term values of the ground and excited Rydberg states of alkali metal atoms trapped in rare gas matrixes were derived from an empirical model potential. The anal. potential smoothly connects the Coulomb potential near the core with the shielded Coulomb ...

1986

Développement d'un appareillage pour l'étude de la polarisation optique de l'hélium-3 et de sa relaxation par des surfaces

We have developed an apparatus to polarize 3He gas (at a few torrs pressure) by optical pumping from a 4He light source and to measure the evolution of the magnetic moment for relaxation studies. The magnetic moment is measured by applying a pulse of radio ...

s.n.1973

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