activity
20152026
most citedQuantum embedding methods for correlated excited states of point defects: Case studies and challenges

69 citations · 607 across the 29 of their papers we have counts for

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Showing 2021Show all

7 papers · 1 filter

cond-mat.supr-con2021

The effects of strain in multi-orbital superconductors: the case of SrRuO

Sophie Beck, Alexander Hampel, Manuel Zingl +2

Uniaxial strain experiments have become a powerful tool to unveil the character of unconventional phases of electronic matter. Here we propose a combination of the superconducting…

cond-mat.str-el2021★ 22 cited

Charge self-consistent electronic structure calculations with dynamical mean-field theory using Quantum ESPRESSO, Wannier90 and TRIQS

Sophie Beck, Alexander Hampel, Olivier Parcollet +2

We present a fully charge self-consistent implementation of dynamical mean field theory (DMFT) combined with density functional theory (DFT) for electronic structure calculations o…

cond-mat.mes-hall2021★ 8 cited

Investigation of photon emitters in Ce-implanted hexagonal boron nitride

Gabriel I. López-Morales, Mingxing Li, Alexander Hampel +9

Color centers in hexagonal boron nitride (hBN) are presently attracting broad interest as a novel platform for nanoscale sensing and quantum information processing. Unfortunately,…

cond-mat.mtrl-sci2021

Sensing Strain-induced Symmetry Breaking by Reflectance Anisotropy Spectroscopy

M. Volpi, S. Beck, A. Hampel +3

Intentional breaking of the lattice symmetry in solids is a key concept to alter the properties of materials by modifying their electronic band structure. However, the correlation…

cond-mat.mtrl-sci2021★ 69 cited

Quantum embedding methods for correlated excited states of point defects: Case studies and challenges

Lukas Muechler, Danis I. Badrtdinov, Alexander Hampel +3

A quantitative description of the excited electronic states of point defects and impurities is crucial for understanding materials properties, and possible applications of defects…

cond-mat.mtrl-sci2021★ 10 cited

Interplay between breathing-mode distortions and magnetic order in rare-earth nickelates from magnetic models

Danis I. Badrtdinov, Alexander Hampel, Cyrus E. Dreyer

We use density-functional theory calculations to explore the magnetic properties of perovskite rare-earth nickelates, NiO, by constructing microscopic magnetic mod…

cond-mat.str-el2021★ 39 cited

Dependence of DFT+DMFT Results on the Construction of the Correlated Orbitals

Jonathan Karp, Alexander Hampel, Andrew J. Millis

The sensitivity of Density Functional Theory plus Dynamical Mean Field Theory calculations to different constructions of the correlated orbitals is investigated via a detailed comp…