Electronic correlations and superconducting instability in under high pressure

F Lechermann, J Gondolf, S Bötzel, IM Eremin - Physical Review B, 2023 - APS
Motivated by the report of superconductivity in bilayer La 3 Ni 2 O 7 at high pressure, we
examine the interacting electrons in this system. First-principles many-body theory is utilized …

Iron-based binary ferromagnets for transverse thermoelectric conversion

A Sakai, S Minami, T Koretsune, T Chen, T Higo… - Nature, 2020 - nature.com
Thermoelectric generation using the anomalous Nernst effect (ANE) has great potential for
application in energy harvesting technology because the transverse geometry of the Nernst …

Late transition metal oxides with infinite-layer structure: Nickelates versus cuprates

F Lechermann - Physical Review B, 2020 - APS
The correlated electronic structure of the infinite-layer compounds NdNiO 2 and SrCuO 2 at
stoichiometry and with finite hole doping is compared. Key differences are elucidated from …

Multiorbital Processes Rule the Normal State

F Lechermann - Physical Review X, 2020 - APS
The predominant Ni-multiorbital nature of infinite-layer neodynium nickelate at stoichiometry
and with doping is revealed. We investigate the correlated electronic structure of NdNiO 2 at …

[HTML][HTML] From basic properties to the Mott design of correlated delafossites

F Lechermann - npj Computational Materials, 2021 - nature.com
The natural-heterostructure concept realized in delafossites highlights these layered oxides.
While metallic, band-or Mott-insulating character may be associated with individual layers …

Effect of short-range ordering and grain boundary segregation on shear deformation of CoCrFeNi high-entropy alloys with Al addition

R Babicheva, A Jarlöv, H Zheng, S Dmitriev… - Computational Materials …, 2022 - Elsevier
A method combining molecular dynamics (MD) and Monte Carlo (MC) simulation is used to
analyze the short-range ordering and grain boundary (GB) segregation in the bi-crystals of …

Doping-dependent character and possible magnetic ordering of

F Lechermann - Physical Review Materials, 2021 - APS
The novel nickelate superconductors of infinite-layer type feature challenging electronic
pecularities in the normal-state phase diagram with doping. Distinct many-body behavior …

Structure of the high-entropy alloy AlxCrFeCoNi: fcc versus bcc

M Ogura, T Fukushima, R Zeller… - Journal of Alloys and …, 2017 - Elsevier
The effect of Al on the crystal structures of the high-entropy alloy Al x CrFeCoNi is discussed
using first-principles electronic structure calculations. When the atomic configuration is …

Electronic instability, layer selectivity, and Fermi arcs in

F Lechermann, S Bötzel, IM Eremin - Physical Review Materials, 2024 - APS
Using advanced dynamical mean-field theory on a realistic level we study the normal-state
correlated electronic structure of the high-pressure superconductor La 3 Ni 2 O 7 and …

[HTML][HTML] Forming mechanism of equilibrium and non-equilibrium metallurgical phases in dissimilar aluminum/steel (Al–Fe) joints

SL Shang, H Sun, B Pan, Y Wang, AM Krajewski… - Scientific reports, 2021 - nature.com
Forming metallurgical phases has a critical impact on the performance of dissimilar
materials joints. Here, we shed light on the forming mechanism of equilibrium and non …