[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 …

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 …

Topological Mott insulator in the odd-integer filled Anderson lattice model with Hatsugai-Kohmoto interactions

K Jabłonowski, J Skolimowski, W Brzezicki, K Byczuk… - Physical Review B, 2023 - APS
Recently, a quantum anomalous Hall state at odd-integer filling in moiré stacked MoTe
2/WSe 2 was convincingly interpreted as a topological Mott insulator state appearing due to …

Spin-triplet paired phases inside a ferromagnet induced by Hund's rule coupling and electronic correlations: Application to

E Kądzielawa-Major, M Fidrysiak, P Kubiczek, J Spałek - Physical Review B, 2018 - APS
We discuss a mechanism of real-space spin-triplet pairing, which is an alternative to the one
due to quantum paramagnon excitations, and demonstrate its applicability to UGe 2. Both …

Mechanism for transitions between ferromagnetic and antiferromagnetic orders in d-electron metallic magnets

MM Wysokiński - Scientific reports, 2019 - nature.com
We propose mechanism for pressure-induced transitions between ferromagnetic and
antiferromagnetic phases that relies on a competition between characteristic energy scales …

Coexistent spin-triplet superconducting and ferromagnetic phases induced by Hund's rule coupling and electronic correlations: Effect of the applied magnetic field

M Fidrysiak, D Goc-Jagło, E Kądzielawa-Major… - Physical Review B, 2019 - APS
The recently proposed local-correlation-driven pairing mechanism, describing ferromagnetic
phases (FM1 and FM2) coexisting with spin-triplet superconductivity (SC) within a single …

Fermi surface and Lifshitz transitions of a ferromagnetic superconductor under external magnetic fields

R Leenen, D Aoki, G Knebel, A Pourret… - Physical Review …, 2024 - APS
Lifshitz transitions are being increasingly recognized as significant in a wide variety of
strongly correlated and topological materials, and understanding the origin and influence of …

Microscopic mechanism for the unusual antiferromagnetic order and the pressure-induced transition to ferromagnetism in

MM Wysokiński - Physical Review B, 2018 - APS
Uranium diantimonide (USb 2) reflects enigmatic properties posing a substantial challenge
for a microscopic modeling. Among others, it develops a nonstandard antiferromagnetic …

Constraints on the merging of the transition lines at the tricritical point in a wing-structure phase diagram

V Taufour, US Kaluarachchi, VG Kogan - Physical Review B, 2016 - APS
We consider the phase diagram of a ferromagnetic system driven to a quantum phase
transition with a tuning parameter p. Before being suppressed, the transition becomes of the …

[PDF][PDF] Ground state phase diagram of the extended Hubbard model with pair-hop** interaction in the limit of very narrow bandwidth

K Kapcia, W Czart - Acta Physica Polonica A, 2016 - bibliotekanauki.pl
The extended Hubbard model with the pair-hop** interaction, ie the Penson-Kolb-
Hubbard model, is one of the conceptually simplest phenomenological models for studying …