Publications de Massimiliano Stengel

Long-range electrostatic contribution to electron-phonon couplings and mobilities of two-dimensional and bulk materials

Nicola Marzari, Marco Gibertini, Samuel Poncé, Massimiliano Stengel

Charge transport plays a crucial role in manifold potential applications of two-dimensional materials, in-cluding field-effect transistors, solar cells, and transparent conductors. At most operating temperatures, charge transport is hindered by scattering ...

AMER PHYSICAL SOC2023

First-principles study of high-field piezoelectricity in tetragonal PbTiO3

Anindya Roy, Massimiliano Stengel

We calculate from first principles the nonlinear piezoelectric response of ferroelectric PbTiO3 for the case of a polarization-enhancing electric field applied along the tetragonal axis. We focus mainly on the case of fixed in-plane lattice constants, corr ...

2010

Supramolecular Self-Assembly Driven by Electrostatic Repulsion: The 1D Aggregation of Rubrene Pentagons on Au(111)

Wolf-Dieter Schneider, Alfonso Baldereschi, Massimiliano Stengel

At present, organic molecules are among the best candidate "building blocks" for the construction of self-assembling nanoscale devices based on metal substrates. Control of the formation of specific patterns In the submonolayer regime is usually achieved b ...

2010

Berry-phase theory of polar discontinuities at oxide-oxide interfaces

Massimiliano Stengel

In the framework of the modern theory of polarization, we rigorously establish the microscopic nature of the electric displacement field D. In particular, we show that the longitudinal component of D is preserved at a coherent and insulating interface. To ...

2009

Local work function Moire pattern on ultrathin ionic films: NaCl on Ag(100)

Wolf-Dieter Schneider, François Patthey, Marina Pivetta, Alfonso Baldereschi, Massimiliano Stengel

2005