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Hall response of locally correlated two-dimensional electrons at low density
Giacomo Morpurgo, Louk Rademaker, Christophe Berthod +1
We study the Hall constant in a homogeneous two-dimensional fluid of correlated electrons immersed in a perpendicular magnetic field, with special focus on the regime of low carrie…
Vortex-core spectroscopy of -wave cuprate high-temperature superconductors
Ivan Maggio-Aprile, Tejas Parasram Singar, Christophe Berthod +3
The mechanism of high-temperature superconductivity remains one of the great challenges of contemporary physics. Here, we review efforts to image the vortex lattice in copper oxide…
Can dd excitations mediate pairing ?
Francesco Barantani, Christophe Berthod, Dirk van der Marel
The Cu- states in the high- cuprates are often described as a single band of states, with the other four states having about 2 to 3 eV higher energy du…
Electronic structure of few-layer black phosphorus from -ARPES
Florian Margot, Simone Lisi, Irène Cucchi +13
Black phosphorus (BP) stands out among two-dimensional (2D) semiconductors because of its high mobility and thickness dependent direct band gap. However, the quasiparticle band str…
Theory of spin-polarized high-resolution electron energy loss spectroscopy from nonmagnetic surfaces with a large spin-orbit coupling
Khalil Zakeri, Christophe Berthod
The scattering theory of low-energy (slow) electrons has been developed by Evans and Mills [Phys. Rev. B 5, 4126 (1972)]. The formalism is merely based on the electrostatic Coulomb…