Our research activity is focused on the electronic and magnetic properties of low dimensional systems and hybrid organic/inorganic heterostructures. Combining scanning tunneling microscopy and spectroscopy(STM/STS) with other non-local spectroscopies (XPS/ARPES, XAS/XMCD), we study the correlation between structural, electronic and magnetic properties in order to manipulate them with atomic precision. Our current research activities focus on:

Metal-organic molecules

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 Ligand and coordination chemistry can be used to design metal-organic molecules with an endless portfolio of physical properties. The pristine molecular properties are however,  in most cases strongly modified in the presence of an interface.  In our group we investigate how the interfacial interaction affects the molecular properties, and examine different manipulation strategies to control the molecular charge and spin, such as electron doping or the use of magnetic templates. Read more…

 

Graphene

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The unique properties of graphene, such as its gapless relativistic band structure and pseudospin magnetic character, have made this carbon-based material the focus of extremely numerous and diverse investigations during the last years. Such an extensive interest originates from the possibility of realizing graphene-based optolectronic and spintronic devices. The success of these potential applications depends, however, on the tunability of the electronic structure of graphene and a structural control at the nanoscale. In our group we develop methods to control the size and shape of graphene nanostructures and engineer their electronic structure by quantum confinement and using different metallic interfaces. Read more…

 

Electron scattering

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Scattering processes affect electron dynamics, transport and quantum confinement. Hence, understanding the mechanisms behind different scattering phenomena is of paramount importance both for fundamental knowledge and the design of novel electronic nanodevices. This is particularly crucial in recently discovered 2D materials such as graphene and topological insulators, where scattering is characterized by the entanglement between orbital momentum and pseudospin (in graphene) or spin (in topological insulators), resulting in exotic charge and spin transport properties. We investigate the scattering phenomena in metallic 2D systems using quantum resonators with controlled geometry, such as nanoislands or atomic steps. Read more…