41 citations · 632 across the 55 of their papers we have counts for
9 papers · 1 filter
Electrical polarization switching in bulk single crystal GaFeO
Maria Biernacka, Paweł Butkiewicz, Konrad J. Kapcia +5
The electrical polarization switching on stoichiometric GaFeO single crystal was measured, and a new model of atomic displacements responsible for the polarization reverse wa…
Ultrafast demagnetization in bulk nickel induced by X-ray photons tuned to Ni and absorption edges
Konrad J. Kapcia, Victor Tkachenko, Flavio Capotondi +4
Studies of light-induced demagnetization started with the experiment performed by Beaupaire et al. on nickel. Here, we present theoretical predictions for X-ray induced demagnetiza…
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…
Electronic processes occurring during ultrafast demagnetization of cobalt triggered by X-ray photons tuned to Co L resonance
Konrad J. Kapcia, Victor Tkachenko, Flavio Capotondi +6
Magnetization dynamics triggered with ultrashort laser pulses has been attracting significant attention, with strong focus on the dynamics excited by VIS/NIR pulses. Only recently,…
Chiral phonons in binary compounds Bi ( = K, Rb, Cs) with P2/c structure
Jakub Skórka, Konrad J. Kapcia, Paweł T. Jochym +1
Binary compounds Bi ( = K, Rb, Cs) crystallize in P2/c structure containing both clockwise and anticlockwise chiral chains of Bi atoms. Electronic band structure exhibits…
Modeling of ultrafast X-ray induced magnetization dynamics in magnetic multilayer systems
K. J. Kapcia, V. Tkachenko, F. Capotondi +6
In this work, we report on modelling results obtained with our recently developed simulation tool enabling nanoscopic description of electronic processes in X-ray irradiated ferrom…
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…
Electronic properties of BiSe dopped by transition metal (Mn, Fe, Co, or Ni) ions
Andrzej Ptok, Konrad Jerzy Kapcia, Anna Ciechan
Topological insulators are characterized by the existence of band inversion and the possibility of the realization of surface states. Doping with a magnetic atom, which is a source…
Electronic and lattice properties of non-centrosymmetric superconductors ThTSi (T = Co, Ir, Ni, and Pt)
A. Ptok, K. Domieracki, K. J. Kapcia +5
The theoretical studies on the electronic and lattice properties of the series of non-centrosymmetric superconductors ThTSi, where T = Co, Ni, Ir, and Pt are presented. The electro…