4 citations · 6 across the 8 of their papers we have counts for
7 papers · 1 filter
Tuning crystal-fields by He-irradiation and orbital Widom line in SrVO films
Matthias Pickem, Karsten Held, Jan M. Tomczak
Helium-ion irradiation of epitaxial SrVO/SrTiO films causes a metal-insulator transition, so far attributed to a Mott localization driven by a reduced kinetic energy. Using…
Beyond the conventional Emery model: crucial role of long-range hopping for cuprate superconductivity
Eric Jacob, M. O. Malcolms, Viktor Christiansson +6
The Emery model is the quintessential model for cuprate superconductors. In his eponymous paper, Emery only considered the next-nearest-neighbor oxygen-copper hopping. Later, also…
Surfaces and interfaces of infinite-layer nickelates studied by dynamical mean-field theory
Leonard M. Verhoff, Liang Si, Karsten Held
Infinite-layer nickelate superconductors are typically synthesized as thin films and thus include, besides the more bulk-like inner layers, distinct surface and interface layers in…
Lattice dynamics of the infinite-layer nickelate LaNiO
Shohei Hayashida, Vignesh Sundaramurthy, Wenfeng Wu +8
Infinite-layer (IL) nickelates have rapidly emerged as a new class of superconductors. However, due to the technical challenges of their topotactic synthesis, they have so far been…
Local correlations necessitate waterfalls as a connection between quasiparticle band and developing Hubbard bands
Juraj Krsnik, Karsten Held
Waterfalls are anomalies in the angle-resolved photoemission spectrum where the energy-momentum dispersion is almost vertical, and the spectrum strongly smeared out. These anomalie…
Weyl nodes in CeBiPd revealed by dynamical mean-field theory
Martin Braß, Jan M. Tomczak, Karsten Held
Experimental studies have found unusual transport properties in CeBiPd which are potentially a consequence of the interplay between band-structure topology and electron…