2.4k citations · 4.9k across the 35 of their papers we have counts for
9 papers · 1 filter
A Theory for Colors of Strongly Correlated Electronic Systems
Swagata Acharya, Cedric Weber, Dimitar Pashov +3
Many strongly correlated transition metal insulators are colored, even though they have large fundamental band gaps and no quasi-particle excitations in the visible range. Why such…
First principles vs second principles: Role of charge self-consistency in strongly correlated systems
Swagata Acharya, Dimitar Pashov, Alexander N. Rudenko +3
First principles approaches have been successful in solving many-body Hamiltonians for real materials to an extent when correlations are weak or moderate. As the electronic correla…
Disentangling the role of bond lengths and orbital symmetries in controlling in YBaCuO
Francois Jamet, Cedric Weber, Swagata Acharya +2
Optimally doped YBCO (YBaCuO) has a high critical temperature, at 92 K. It is largely believed that Cooper pairs form in YBCO and other cuprates because of spin f…
Role of nematicity in controlling spin fluctuations and superconducting Tc in bulk FeSe
Swagata Acharya, Dimitar Pashov, Mark van Schilfgaarde
FeSe undergoes a transition from a tetragonal to a slightly orthorhombic phase at 90\,K, and becomes a superconductor below 8\,K. The orthorhombic phase is sometimes called a nemat…
Metal-insulator transition in copper oxides induced by apex displacements
Swagata Acharya, Cedric Weber, Evgeny Plekhanov +3
High temperature superconductivity has been found in many kinds of compounds built from planes of Cu and O, separated by spacer layers. Understanding why critical temperatures are…
Self-energies in itinerant magnets: A focus on Fe and Ni
L. Sponza, P. Pisanti, A. Vishina +6
We present a detailed study of local and non-local correlations in the electronic structure of elemental transition metals carried out by means of the Quasiparticle Self-consistent…
High photon energy spectroscopy of NiO: experiment and theory
S. K. Panda, Banabir Pal, Suman Mandal +12
We have revisited the valence band electronic structure of NiO by means of hard x-ray photoemission spectroscopy (HAXPES) together with theoretical calculations using both the GW m…
First-principles treatment of Mott insulators: linearized QSGW+DMFT approach
Sangkook Choi, Andrey Kutepov, Kristjan Haule +2
The theoretical understanding of emergent phenomena in quantum materials is one of the greatest challenges in condensed matter physics. In contrast to simple materials such as nobl…
The Electronic Correlation Strength of Pu
A. Svane, R. C. Albers, N. E. Christensen +3
An electronic quantity, the correlation strength, is defined as a necessary step for understanding the properties and trends in strongly correlated electronic materials. As a test…