41 citations · 632 across the 55 of their papers we have counts for
8 papers · 1 filter
Electronic properties and surface states of CeRhAs
Konrad Jerzy Kapcia, Andrzej Ptok
Locally noncentrosymmetric CeRhAs exhibits characteristic two-phase unconventional -- superconducting phase diagram. The transition from even- to odd-parity super…
Interplay of thermal and non-thermal effects in x-ray-induced ultrafast melting
Ichiro Inoue, Victor Tkachenko, Yuya Kubota +15
X-ray laser-induced structural changes in silicon undergoing femtosecond melting have been investigated by using an x-ray pump-x-ray probe technique. The experimental results for d…
Spin-polarized superconducting phase in semiconducting system with next-nearest-neighbor hopping on the honeycomb lattice
Agnieszka Cichy, Konrad J. Kapcia, Andrzej Ptok
The particles in the honeycomb lattice with on-site -wave pairing exhibit many interesting behaviors, which can be described in the framework of the Hubbard model. Among others,…
Magnetic and charge orders on the triangular lattice: Extended Hubbard model with intersite Ising-like magnetic interactions in the atomic limit
Konrad Jerzy Kapcia, Jan Barański
In the work, we investigated a generalized model of the fermionic lattice gas in the form of the extended Hubbard model with intersite Ising-like interactions (both antiferromagnet…
Continuous unitary transformation approach to the Kondo-Majorana interplay
Jan Baranski, Magdalena Baranska, Tomasz Zienkiewicz +2
We analyze a setup composed of a correlated quantum dot (QD) coupled to one metallic lead and one end of topological chain hosting a Majorana zero mode (MZM). In such a hybrid stru…
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…
Femtosecond reduction of atomic scattering factors triggered by intense x-ray pulse
Ichiro Inoue, Jumpei Yamada, Konrad J. Kapcia +12
X-ray diffraction of silicon irradiated with tightly focused femtosecond x-ray pulses (photon energy: 11.5 keV, pulse duration: 6 fs) was measured at various x-ray intensities up t…