2019

  1. K.J. Kapcia, R. Lemański, S. Robaszkiewicz, Extended Falicov-Kimball model: Exact solution for finite temperatures, Phys. Rev. B 99 (24), 245143 (1-15) (2019); arXiv
  2. A.Cichy, K.J. Kapcia, A. Ptok, Phase separations induced by a trapping potential in one-dimensional fermionic systems as a source of core-shell structures, Scientific Reports 9, 6719 (1-9) (2019); arXiv
  3. A. Ptok, M. Sternik, K.J. Kapcia, P. Piekarz, Structural, electronic, and dynamical properties of the tetragonal and collapsed tetragonal phases of KFe2As2, Phys. Rev. B 99 (13), 134103 (1-16) (2019)

2018

  1. K.J. Kapcia, W.R. Czart, Phase separations in the narrow-bandwidth limit of the Penson-Kolb-Hubbard model at zero temperature, Acta Phys. Pol. A 133 (3), 401-404 (2018)
  2. A. Ptok, A. Cichy, K. Rodríguez, K.J. Kapcia, Phase transitions in quasi-one dimensional system with unconventional superconductivity, J. Supercond. Nov. Magn. 31 (3), 697-702 (2018); arXiv
  3. A. Ptok, K. Rodríguez, K.J. Kapcia, Superconducting monolayer deposited on substrate: Effects of the spin-orbit coupling induced by proximity effects, Phys. Rev. Materials 2 (2), 024801 (1-10) (2018); arXiv

2017

  1. R. Lemański, K.J. Kapcia, S. Robaszkiewicz, Extended Falicov-Kimball model: Exact solution for the ground state, Phys. Rev. B 96 (20), 205102 (1-9) (2017); arXiv
  2. K.J. Kapcia, J. Barański, A. Ptok, Diversity of charge orderings in correlated systems, Phys. Rev. E 96 (4), 042104 (1-12) (2017); arXiv
  3. A. Ptok, K.J. Kapcia, P. Piekarz, A.M. Oleś, The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe, New. J. Phys. 19 (6), 063039 (1-15) (2017); arXiv
  4. A. Ptok, A. Cichy, K. Rodríguez, K.J. Kapcia, Critical behavior in one dimension: Unconventional pairing, phase separation, BEC-BCS crossover, and magnetic Lifshitz transition, Phys. Rev. A 95 (3), 033613 (1-9) (2017); arXiv
  5. K.J. Kapcia, S. Robaszkiewicz, M. Capone, A. Amaricci, Doping-driven metal-insulator transitions and charge orderings in the extended Hubbard model, Phys. Rev. B 95 (12), 125112 (1-11) (2017); arXiv
  6. A. Ptok, K.J. Kapcia, A. Cichy, A.M. Oleś, P. Piekarz, Magnetic Lifshitz transition and its consequences in multi-band iron-based superconductors, Scientific Reports 7, 41979 (1-11) (2017); arXiv
  7. K.J. Kapcia, J. Barański, S. Robaszkiewicz, A. Ptok, Various charge-ordered states in the extended Hubbard model with on-site attraction in the zero-bandwidth limit, J. Supercond. Nov. Magn. 30 (1), 109-115 (2017)

2016

  1. K.J. Kapcia, W.R. Czart, Ground State Phase Diagram of the Extended Hubbard Model with Pair-Hopping Interaction in the Limit of Very Narrow Bandwidth Acta Phys. Pol. A 130 (2), 617–620 (2016)
  2. K.J. Kapcia, S. Robaszkiewicz, On the phase diagram of the extended Hubbard model with intersite density–density interactions in the atomic limit Physica A 461 (C), 487–497 (2016)
  3. K.J. Kapcia, W.R. Czart, A. Ptok, Phase Separation of Superconducting Phases in the Penson–Kolb–Hubbard Model J. Phys. Soc. Jpn. 85 (4), 044708 (1-7) (2016); arXiv

2015

  1. K.J. Kapcia, S. Murawski, W. Kłobus, S. Robaszkiewicz, "Magnetic orderings and phase separations in a simple model of insulating systems", Physica A 437 (C), 218-234 (2015)
  2. K.J. Kapcia, "Superconductivity, Charge Orderings, Magnetism, and Their Phase Separations in the Ground State of Lattice Models of Superconductor with Very Short Coherence Length", J. Supercond. Nov. Magn. 28 (4), 1289-1294 (2015); AMUR
  3. A. Ptok, K.J. Kapcia, "Probe-type of superconductivity by impurity in materials with short coherence length: the s-wave and eta-wave phases study", Supercond. Sci. Technol. 28 (4), 045022 (1-8) (2015); arXiv
  4. A. Ptok, D. Crivelli, K.J. Kapcia, "Change of the sign of superconducting intraband order parameters induced by interband pair hopping interaction in iron-based high-temperature superconductors", Supercond. Sci. Technol. 28 (4), 045010 (1-7) (2015)
  5. K.J. Kapcia, "Electron phase separations involving superconductivity in the extended Hubbard models with pair hopping interaction", Acta Phys. Pol. A 127 (2), 204-206 (2015); AMUR
  6. S. Murawski, K.J. Kapcia, G. Pawłowski, S. Robaszkiewicz, "Monte Carlo study of phase separation in magnetic insulators", Acta Phys. Pol. A 127 (2), 281-283 (2015); arXiv, AMUR
  7. K.J. Kapcia, W. Kłobus, S. Robaszkiewicz, "Some exact results for the zero-bandwidth extended Hubbard model with intersite charge and magnetic interactions", Acta Phys. Pol. A 127 (2), 284-286 (2015); arXiv, AMUR

2014

  1. K.J. Kapcia, "Superconductivity, Metastability and Magnetic Field Induced Phase Separation in the Atomic Limit of the Penson-Kolb-Hubbard Model", Acta Phys. Pol. A 126 (4-A), A-53--A-57 (2014); arXiv, AMUR
  2. S. Murawski, K.J. Kapcia, G. Pawłowski, S. Robaszkiewicz, "Some Properties of Two-Dimensional Extended Repulsive Hubbard Model with Intersite Magnetic Interactions - A Monte Carlo Study", Acta Phys. Pol. A 126 (4-A), A-110--A-113 (2014); arXiv, AMUR
  3. K. Kapcia, "Metastability and Phase Separation in a Simple Model of a Superconductor with Extremely Short Coherence Length", J. Supercond. Nov. Magn. 27 (4), 913-917 (2014); arXiv, AMUR

2013

  1. K. Kapcia, "Interplay and Competition Between Superconductivity and Charge Orderings in the Zero-Bandwidth Limit of the Extended Hubbard Model with Pair Hopping and on-Site Attraction", J. Supercond. Nov. Magn. 26 (8), 2647-2650 (2013); arXiv, AMUR
  2. K. Kapcia, S. Robaszkiewicz, "The magnetic field induced phase separation in a model of a superconductor with local electron pairing", J. Phys.: Condens. Matter 25 (6), 065603 (1-8) (2013); arXiv, AMUR

2012

  1. K. Kapcia, S. Robaszkiewicz, R. Micnas, "Phase separation in a lattice model of a superconductor with pair hopping", J. Phys.: Condens. Matter 24 (21), 215601 (1-14) (2012); arXiv, AMUR
  2. K. Kapcia, S. Robaszkiewicz, "Stable and Metastable Phases in the Atomic Limit of the Extended Hubbard Model with Intersite Density-Density Interactions", Acta Phys. Pol. A 121 (5-6), 1029-1031 (2012); arXiv, AMUR
  3. K. Kapcia, W. Kłobus, S. Robaszkiewicz, "Interplay between Charge and Magnetic Orderings in the Zero-Bandwidth Limit of the Extended Hubbard Model for Strong On-Site Repulsion", Acta Phys. Pol. A 121 (5-6), 1032-1034 (2012); arXiv, AMUR
  4. S. Murawski, K. Kapcia, G. Pawłowski, S. Robaszkiewicz, "On the Phase Diagram of the Zero-Bandwidth Extended Hubbard Model with Intersite Magnetic Interactions for Strong On-Site Repulsion Limit", Acta Phys. Pol. A 121 (5-6), 1035-1037 (2012); arXiv, AMUR
  5. K. Kapcia, "Some Properties of the Model of a Superconductor with Pair Hopping and Magnetic Interactions at Half-Filling", Acta Phys. Pol. A 121 (4), 733-737 (2012); arXiv, AMUR

2011

  1. K. Kapcia, S. Robaszkiewicz, "The effects of next-nearest-neighbour density-density interaction in the atomic limit of the extended Hubbard model", J. Phys.: Condens. Matter 23 (10), 105601 (1-12) (2011); arXiv, AMUR Erratum: J. Phys.: Condens. Matter 23 (24), 249802 (1) (2011)

2010

  1. G. Grabecki, K. A. Kolwas, J. Wróbel, K. Kapcia, R. Puźniak, R. Jakieła, M. Aleszkiewicz, T. Dietl, G. Springholz, G. Bauer, "Contact superconductivity in In-PbTe junctions", J. Appl. Phys. 108 (5), 053714 (1-9) (2010); arXiv
  2. K. Kapcia, W. Kłobus, S. Robaszkiewicz, "Charge Orderings and Phase Separations in the Atomic Limit of the Extended Hubbard Model with Intersite Density-Density Interactions", Acta Phys. Pol. A 118 (2), 350-352 (2010); arXiv, AMUR
  3. W. Kłobus, K. Kapcia, S. Robaszkiewicz, "Magnetic Orderings and Phase Separations in the Zero-Bandwidth Limit of the Extended Hubbard Model with Intersite Magnetic Interactions", Acta Phys. Pol. A 118 (2), 353-355 (2010); arXiv, AMUR

2007

  1. R. Puźniak, A. Wiśniewski, A. Szewczyk, K. Kapcia, J. Jun, N. D. Zhigadlo, S. M. Kazakov, J. Karpiński, "Anisotropic upper critical field of chemically substituted MgB2 single crystals studied by torque magnetometry", Physica C 460-462 (Part 1), 616-617 (2007)