[HTML][HTML] Superconductivity in high-Tc and related strongly correlated systems from variational perspective: Beyond mean field theory

J Spałek, M Fidrysiak, M Zegrodnik, A Biborski - Physics Reports, 2022 - Elsevier
The principal purpose of this topical review is to single out some of the universal features of
high-temperature (high-T c) and related strongly-correlated systems, which can be …

Tuning topological superconductivity within the model of twisted bilayer cuprates

M Fidrysiak, B Rzeszotarski, J Spałek - Physical Review B, 2023 - APS
We carry out a theoretical study of unconventional superconductivity in twisted bilayer
cuprates (TBCs) as a function of electron density and layer twist angle. The bilayer tJU …

Antiferromagnetism, charge density wave, and d-wave superconductivity in the extended tJU model: role of intersite Coulomb interaction and a critical overview of …

M Abram, M Zegrodnik, J Spałek - Journal of Physics: Condensed …, 2017 - iopscience.iop.org
In the first part of the paper, we study the stability of antiferromagnetic (AF), charge density
wave (CDW), and superconducting (SC) states within the tJUV model of strongly correlated …

Universal properties of high-temperature superconductors from real-space pairing: model and its quantitative comparison with experiment

J Spałek, M Zegrodnik, J Kaczmarczyk - Physical Review B, 2017 - APS
Selected universal experimental properties of high-temperature superconducting (HTS)
cuprates have been singled out in the last decade. One of the pivotal challenges in this field …

Superconductivity in the three-band model of cuprates: Variational wave function study and relation to the single-band case

M Zegrodnik, A Biborski, M Fidrysiak, J Spałek - Physical Review B, 2019 - APS
The d-wave superconductivity (SC) is analyzed within the three-band dp model with the use
of the diagrammatic expansion of the Gutzwiller wave function method (DE-GWF). The …

Universal properties of high-temperature superconductors from real-space pairing: Role of correlated hopping and intersite Coulomb interaction within the  …

M Zegrodnik, J Spałek - Physical Review B, 2017 - APS
We study the effect of the correlated hopping term and the intersite Coulomb interaction term
on principal features of the d-wave superconducting (SC) state, in both the electron-and hole …

Effect of interlayer processes on the superconducting state within the model: Full Gutzwiller wave-function solution and relation to experiment

M Zegrodnik, J Spałek - Physical Review B, 2017 - APS
The Gutzwiller wave-function solution of the tJU model is considered for the bilayer high-TC
superconductor by using the so-called diagrammatic expansion method. The focus is on the …

Incorporation of charge- and pair-density-wave states into the one-band model of -wave superconductivity

M Zegrodnik, J Spałek - Physical Review B, 2018 - APS
We study the coexistence of pair-(PDW) and charge-density-wave (CDW) states within the
single-band tJU and Hubbard models of d-wave superconductivity and discuss our results in …

Superconductivity in the three-band model of cuprates: nodal direction characteristics and influence of intersite interactions

M Zegrodnik, A Biborski, M Fidrysiak… - Journal of Physics …, 2021 - iopscience.iop.org
The three-band Emery model is applied to study the selected principal features of the d-
wave superconducting phase in the copper-based compounds. The electron–electron …

Ferromagnetism in : A microscopic model

MM Wysokiński, M Abram, J Spałek - Physical Review B, 2014 - APS
The Anderson lattice model is used to explain the principal features of the heavy fermion
compound UGe 2 by means of the generalized Gutzwiller approach (the statistically …