462 citations · 6.7k across the 144 of their papers we have counts for
145 papers
Electronic structure of the putative room-temperature superconductor PbCu(PO)O
Liang Si, Karsten Held
A recent paper [Lee {\em et al.}, J. Korean Cryt. Growth Cryst. Techn. {\bf 33}, 61 (2023)] provides some experimental indications that PbCu(PO)O with $x\appro…
PbCu(PO)O: a Mott or charge transfer insulator in need of further doping for (super)conductivity
Liang Si, Markus Wallerberger, Andriy Smolyanyuk +3
We briefly review the status quo of research on the putative superconductor PbCu(PO)O also known as LK-99. Further, we provide {\em ab initio} derived tight-binding par…
No superconductivity in PbCu(PO)O found in orbital and spin fluctuation exchange calculations
Niklas Witt, Liang Si, Jan M. Tomczak +2
Finding a material that turns superconducting under ambient conditions has been the goal of over a century of research, and recently PbCu(PO)O aka LK-99 has be…
Chiral magnetism and ordering of oxygen vacancies in SrTiO
Liang Si, Xiaochao Wang, Paul Worm +4
Oxygen vacancies in the perovskite insulator SrTiO free electrons that couple with other physical degrees of freedom such as lattice, orbital, and spin. This leads to the emerg…
Strain-Tuned Magnetic Frustration in a Square Lattice - Material
I. Biało, L. Martinelli, G. De Luca +16
Magnetic frustration is a route that can lead to the emergence of novel ground states, including spin liquids and spin ices. Such frustration can be introduced through either the g…
A functional-analysis derivation of the parquet equation
Christian J. Eckhardt, Patrick Kappl, Anna Kauch +1
The parquet equation is an exact field-theoretic equation known since the 60s that underlies numerous approximations to solve strongly correlated Fermion systems. Its derivation pr…