Involvement since the early days of spintronics, recognition for his work on giant magnetoresistance (CPP-GMR).Magnetic relaxation of single nanostructures.
My research program focuses on the exploration of the novel physical and chemical properties arising when metals shrink to the nanoscale. Starting from a detailed understanding of epitaxial growth, derived from variable temperature
Synthesis, physical properties and manipulation of carbon nanostuctures and nanostucturedarrays.- Mechanical properties of carbon nanotubes, carbon onions, biological tubular systems.
Our laboratory explores quantum dynamics in nanostructures and small molecules on time scales ranging from femto- to nanoseconds. Our goal is to study quantum decoherence at the nano- and mesoscale, to clarify the role of quantum effects in molecular photophysics and photochemistry, and to explore new nanomaterials for emerging quantum technologies.
Electron microscopy, Angular resolved Electron Energy Loss Spectrometry, Focused Ion Beam nano-tomography.
Self-organization of nanostructures, optical properties and electron transport in low-dimensional quantum structures, quantum wire and quantum dot lasers, photonic crystals and vertical cavity surface emitting lasers.
Photonic crystals are defined by a periodic modulation of the dielectric function on the wavelength scale in electromagnetic structures. They exhibit many original properties such as enhancement or inhibition of spontaneous emission and numerous applications in applied science like nanophotonics and integrated optics due to their ability to control both light propagation and localization at the wavelength scale. We are mainly working on bi-dimensional structures etching on III-V or Si planar waveguides. We focus mainly on light propagation in the slow light regime and disorder effects, high-Q cavities, hollow photonic crystals structures with a large field overlap with the environment and extension to visible range material systems.
Nanoscale science, self-ordering phenomena and in chemistry and physics of surfaces and interfaces.
Neutron diffusion studies of high temperature superconductors.
The research activity covers the study of atomic-scale phenomena both from the structural and dynamical point of view. The aim is to complement experiment by providing a realistic description of the mechanisms occurring on the atomic and nanometer scale.
Many-body physics and optical properties of electronic excitations in semiconductor nanostructures. Quantum optics and photonics. Quantum gases and collective phenomena.
Theoretical and computational physics of Dirac fermion materials (graphene and topological insulators) with strong emphasis on their prospective technological applications.