60 citations · 74 across the 6 of their papers we have counts for
10 papers
Ferroelectric 180 degree walls are mechanically softer than the domains they separate
Christina Stefani, Louis Ponet, Konstantin Shapovalov +7
Domain walls are functionally different from the domains they separate, but little is known about their mechanical properties. Using scanning probe microscopy, we have measured the…
Phonon-limited electron mobility in Si, GaAs and GaP with exact treatment of dynamical quadrupoles
Guillaume Brunin, Henrique Pereira Coutada Miranda, Matteo Giantomassi +6
We describe a new approach to compute the electron-phonon self-energy and carrier mobilities in semiconductors. Our implementation does not require a localized basis set to interpo…
Electron-Phonon Beyond Fröhlich: Dynamical Quadrupoles in Polar and Covalent Solids
Guillaume Brunin, Henrique Pereira Coutada Miranda, Matteo Giantomassi +6
We include the treatment of quadrupolar fields beyond the Fröhlich interaction in the first-principles electron-phonon vertex in semiconductors. Such quadrupolar fields induce long…
Electrostatic potential mapping at ferroelectric domain walls by low-temperature photoemission electron microscopy
J. Schaab, K. Shapovalov, P. Schoenherr +10
Low-temperature X-ray photoemission electron microscopy (X-PEEM) is used to measure the electric potential at domain walls in improper ferroelectric Er0.99Ca0.01MnO3. By combining…
Seeing moiré superlattices
L. J. McGilly, A. Kerelsky, N. R. Finney +17
Moiré superlattices in van der Waals (vdW) heterostructures have given rise to a number of emergent electronic phenomena due to the interplay between atomic structure and electron…
Novel mechanisms to enhance the capacitance beyond the classical limits in capacitors with free-electron-like electrodes
Javier Junquera, Pablo García-Fernández, Massimiliano Stengel
The so-called negative electron compressibility refers to the lowering of the chemical potential of a metallic system when the carrier density increases. This effect has often been…