34 citations · 248 across the 18 of their papers we have counts for
22 papers
Stress-Tuned Optical Transitions in Layered 1T-MX2 (M= Hf, Zr, Sn; X= S, Se) Crystals
Miłosz Rybak, Tomasz Woźniak, Magdalena Birowska +5
Optical measurements under externally applied stresses allow us to study the materials' electronic structure by comparing the pressure evolution of optical peaks obtained from expe…
Charge-order on the triangular lattice: Effects of next-nearest-neighbor attraction in finite temperatures
Konrad Jerzy Kapcia
The extended Hubbard model in the atomic limit, which is equivalent to lattice fermionic gas, is considered on the triangular lattice. The model includes onsite Hubbard …
Thermodynamic and electromagnetic properties of the eta-pairing superconductivity in the Penson-Kolb model
Wojciech R. Czart, Konrad J. Kapcia, Roman Micnas +1
In the paper, we study the thermodynamic and electromagnetic properties of the Penson-Kolb (PK) model, i.e., the tight-binding model for fermionic particles with the pair-hopping i…
Charge-Order on the Triangular Lattice: A Mean-Field Study for the Lattice Fermionic Gas
Konrad Jerzy Kapcia
The adsorbed atoms exhibit tendency to occupy a triangular lattice formed by periodic potential of the underlying crystal surface. Such a lattice is formed by, e.g., a single layer…
Electronic and dynamical properties of CeRhAs: Role of RhAs layers and expected hidden orbital order
Andrzej Ptok, Konrad J. Kapcia, Paweł T. Jochym +3
Recently discovered heavy fermion CeRhAs compound crystallizes in the nonsymmorphic symmetry, which enables the occurrence of topological protection. Experimen…
Extended Falicov-Kimball model at weak onsite and intersite Coulomb interactions
K. J. Kapcia, J. Krawczyk, R. Lemański
We analyze in detail a behavior of the order parameter in the half-filled extended Falicov-Kimball model for small Coulomb interactions (both onsite and intersite ). The par…