Publications related to Binding energies of ground and excited states of shallow acceptors in GaAs/Ga1-xAlxAs quantum wells

An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions

wannier90 is a program for calculating maximally-localised Wannier functions (MLWFs) from a set of Bloch energy bands that may or may not be attached to or mixed with other bands. The formalism works by minimising the total spread of the MLWFs in real spac ...

Elsevier Science Bv2014

MPc/Au(111) interface electronic structure investigated by high-resolution photoemission spectroscopy

Sara Fatale

We study the adsorption and the growth of FePc and MnPc layer(s) on the Au(111) surface. The evolution of the Au(111) Shockley surface state by molecular deposition has been investigated by means of photoemission spectroscopy. The Shockley surface state un ...

2013

First-principles study of H adsorption on graphene/SiC(0001)

Alfredo Pasquarello, Gabriele Sclauzero

The adsorption of atomic H above the carbon buffer layer in the graphene/SiC(0001) interface system is investigated within density functional theory through a set of realistic interface models that do not impose large artificial strains on the graphene. We ...

Wiley-Blackwell2013

On pointwise decay of linear waves on a Schwarzschild black hole background

Roland Donninger

We prove sharp pointwise

t^{-3}

decay for scalar linear perturbations of a Schwarzschild black hole without symmetry assumptions on the data. We also consider electromagnetic and gravitational perturbations for which we obtain decay rates

t^{-4}

, and $ ...

Springer Verlag2012

Low-strain interface models for epitaxial graphene on SiC(0001)

Alfredo Pasquarello, Gabriele Sclauzero

A set of low-strain commensurate interface structures for epitaxial graphene on SiC(0001) are obtained by combining rotated graphene supercells with m x m or m root 3 x m root 3R30 degrees SiC cells. For two among the interfaces with lowest strain, corresp ...

Elsevier2012

Horava gravity versus thermodynamics: The black hole case

Sergey Sibiryakov, Diego Blas Temino

Under broad assumptions, breaking of Lorentz invariance in gravitational theories leads to tension with unitarity because it allows for processes that apparently violate the second law of thermodynamics. The crucial ingredient of this argument is the exist ...

2011

Role of Adsorbed H, C, O, and CO on the Atomic Structure of Free and MgO(100)-Supported Ir-4 Clusters: An ab Initio Study

Zeljko Sljivancanin, Alfonso Baldereschi, Vladan Stevanovic

We applied density functional theory based on ultrasoft pseudopotentials to study the structural properties of Ir-4 clusters both in the gas phase and adsorbed on a MgO(100) surface. To resolve the discrepancy between experimental data which suggest a tetr ...

2010

Hydrogen bonding described using dispersion-corrected density functional theory

Ursula Röthlisberger, Jeremy Samuel Arey, I-Chun Lin

In recent works, dispersion-corrected atom-centered potentials (DCACPs) were developed as a method to account for long-range dispersion forces between molecules in density functional theory calculations within the generalized gradient approximation (GGA). ...

2009

Modeling of gain and phase dynamics in quantum dot amplifiers

Benoît Marie Joseph Deveaud, Marco Rossetti, Pablo Moreno

By means of an electron hole rate equation model we explain the phase dynamics of a quantum dot semiconductor optical amplifier and the appearance of different decay times observed in pump and probe experiments. The ultrafast hole relaxation leads to a fir ...

Springer US2008

Magneto-photoluminescence of heavy- and light-hole excitons in site-controlled pyramidal quantum dots

Elyahou Kapon, Alok Rudra, Daniel Oberli

Pyramidal, site-controlled InGaAs/AlGaAs quantum dots (QDs) are studied by micro-photoluminescence (PL) spectroscopy in a magnetic field. The light-hole (LH) excitonic transitions exhibit diamagnetic shifts similar to those of their heavy-hole (HH) counter ...

2008

Binding energies of ground and excited states of shallow acceptors in GaAs/Ga1-xAlxAs quantum wells

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An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions

MPc/Au(111) interface electronic structure investigated by high-resolution photoemission spectroscopy

First-principles study of H adsorption on graphene/SiC(0001)

On pointwise decay of linear waves on a Schwarzschild black hole background

Low-strain interface models for epitaxial graphene on SiC(0001)

Horava gravity versus thermodynamics: The black hole case

Role of Adsorbed H, C, O, and CO on the Atomic Structure of Free and MgO(100)-Supported Ir-4 Clusters: An ab Initio Study

Hydrogen bonding described using dispersion-corrected density functional theory

Modeling of gain and phase dynamics in quantum dot amplifiers

Magneto-photoluminescence of heavy- and light-hole excitons in site-controlled pyramidal quantum dots

Horava gravity versus thermodynamics: The black hole case

An updated version of wannier90: A tool for obtaining maximally-localised Wannier functions

MPc/Au(111) interface electronic structure investigated by high-resolution photoemission spectroscopy

Modeling of gain and phase dynamics in quantum dot amplifiers

Magneto-photoluminescence of heavy- and light-hole excitons in site-controlled pyramidal quantum dots

First-principles study of H adsorption on graphene/SiC(0001)

On pointwise decay of linear waves on a Schwarzschild black hole background

Hydrogen bonding described using dispersion-corrected density functional theory

Low-strain interface models for epitaxial graphene on SiC(0001)

Role of Adsorbed H, C, O, and CO on the Atomic Structure of Free and MgO(100)-Supported Ir-4 Clusters: An ab Initio Study