Pietro Gambardella

Cette personne n’est plus à l’EPFL

Publications associées (24)

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Magnetocrystalline anisotropy energy of Co and Fe adatoms on the (111) surfaces of Pd and Rh

Harald Brune, Stefano Rusponi, Pietro Gambardella, Anne Lehnert, Markus Etzkorn, Géraud Moulas

We performed a combined theoretical and experimental investigation of the orbital magnetism and magnetocrystalline anisotropy of isolated Co and Fe adatoms on Pd(111) and Rh(111). Theoretical calculations of the spin and orbital moments are based on ab ini ...

2010

Magnetism of individual atoms adsorbed on surfaces

Harald Brune, Pietro Gambardella

Magnetic impurities in solids cause manifold changes in their macroscopic properties, such as anomalous low temperature resistance due to Kondo screening, reduction of the superconducting transition temperature due to local suppression of the order paramet ...

Elsevier2009

Double-resonant x-ray and microwave absorption: Atomic spectroscopy of precessional orbital and spin dynamics

Giovanni Boero, Stefano Rusponi, Pietro Gambardella

We show that double-resonance spectra recorded during the simultaneous absorption of x-ray and microwave (MW) photons are a fingerprint of the perturbed electronic configuration of atomic species driven to ferromagnetic resonance. X-ray absorption measurem ...

2009

Supramolecular control of the magnetic anisotropy in two-dimensional high-spin Fe arrays at a metal interface

Klaus Kern, Harald Brune, Pietro Gambardella, Magalí Alejandra Lingenfelder, Sylvain Clair, Sebastian Stepanow, Alexandre Dmitriev

Magnetic atoms at surfaces are a rich model system for solid-state magnetic bits exhibiting either classical(1,2) or quantum(3,4) behaviour. Individual atoms, however, are difficult to arrange in regular patterns(1-5). Moreover, their magnetic properties a ...

Nature Publishing Group2009

Longitudinal detection of ferromagnetic resonance using x-ray transmission measurements

Giovanni Boero, Stefano Rusponi, Pietro Gambardella

We describe a setup for the x-ray detection of ferromagnetic resonance in the longitudinal geometry using element-specific transmission measurements. Thin magnetic film samples are placed in a static magnetic field collinear with the propagation direction ...

American Institute of Physics2009

Element-resolved x-ray ferrimagnetic and ferromagnetic resonance spectroscopy

Giovanni Boero, Stefano Rusponi, Pietro Gambardella, Schahrazede-Lila Mouaziz

Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2008

High magnetic moments and anisotropies for FexCo1 - x monolayers on Pt(111)

Harald Brune, Stefano Rusponi, Pietro Gambardella, Anne Lehnert, Markus Etzkorn, Géraud Moulas

2008

Surface characterization of MnxGe1-x and CryMnxGe1-x-y dilute magnetic semiconductors

Harald Brune, Stefano Rusponi, Pietro Gambardella, Laurent Claude

We have used x-ray photoemission electron microscopy (XPEEM) and x-ray absorption spectroscopy (XAS) to characterize MnxGe1-x and CryMnxGe1-x-y films grown by molecular beam epitaxy. The surface layers of the as-grown films probed by XPEEM present segregat ...

2007

Structure and magnetism of atomically thin Fe layers on flat and vicinal Pt surfaces

Klaus Kern, Harald Brune, Stefano Rusponi, Pietro Gambardella, Violetta Sessi

Ultrathin Fe films on Pt substrates have been investigated under ultrahigh vacuum conditions by scanning tunneling microscopy, low energy electron diffraction, magneto-optical Kerr effect, x-ray magnetic circular dichroism measurements, and Kerr microscopy ...

2006

Finite-sized Heisenberg chains and magnetism of one-dimensional metal systems

Pietro Gambardella

2006

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