My main fields of research are dynamical, mechanical and electronic properties of crystalline materials investigated with computational quantum mechanical methods. Most of my work is concerned with two groups of materials: minerals and nanostructures.

If you would like to get some of my papers in electronic form feel free to ask. Due to the fact that you have to give up your copyright to publish anything I cannot just post my own work on the page...

  1. Melting of FePt nanoparticles studied using DFT
    Jochym P.T., Łażewski J., Piekarz P.
    Phys. Chem. Chem. Phys., 2023, 25(23), pp. 15822-15828 [DOI]
  2. Chiral phonons in binary compounds ABi (A = K, Rb, Cs) with P21/c structure
    Skórka J., Kapcia K.J., Jochym P.T., Ptok A.
    Mater. Today Commun., 2023, 35, 105888 [DOI]
  3. Phononic drumhead surface state in the distorted kagome compound RhPb
    Ptok A., Meier W.R., Kobiałka A., Basak S., Sternik M., Łażewski J., Jochym P.T., McGuire M.A., Sales B.C., Miao H., Piekarz P., Oleś A.M.
    Phys. Rev. Res., 2023, 5(4), 043231 [DOI]
  4. Anharmonicity and structural phase transition in the Mott insulator Cu2P2O7
    Pastukh S., Jochym P.T., Pastukh O., Łażewski J., Legut D., Piekarz P.
    Phys. Rev. B, 2023, 108(10), 104104 [DOI]
  5. Phonon confinement and interface lattice dynamics of ultrathin high-krare earth sesquioxide films: The case of Eu2O3on YSZ(001)
    Stankov S., Merkel D.G., Kalt J., Göttlicher J., Łażewski J., Sternik M., Jochym P.T., Piekarz P., Baumbach T., Chumakov A.I., Rüffer R.
    Nanoscale Adv., 2022, 4(1), pp. 19-25 [DOI]
  6. Revisiting properties of CaCoSinO2n+2. Crystal and electronic structure
    Szubka M., Zajdel P., Fijałkowski M., Talik E., Balerna A., Cestelli-Guidi M., Romani M., Łażewski J., Jochym P.T.
    J Magn Magn Mater, 2022, 546, 168858 [DOI]
  7. Lattice dynamics of ?- FeSi2 nanorods
    Kalt J., Sternik M., Sergeev I., Mikolasek M., Bessas D., Göttlicher J., Krause B., Vitova T., Steininger R., Sikora O., Jochym P.T., Leupold O., Wille H.-C., Chumakov A.I., Piekarz P., Parlinski K., Baumbach T., Stankov S.
    Phys. Rev. B, 2022, 106(20), 205411 [DOI]
  8. Dynamical study of the origin of the charge density wave in A V3Sb5 (A= K, Rb, Cs) compounds
    Ptok A., Kobiałka A., Sternik M., Łażewski J., Jochym P.T., Oleś A.M., Piekarz P.
    Phys. Rev. B, 2022, 105(23), 235134 [DOI]
  9. Influence of anharmonicity on the negative thermal expansion of α-Sn
    Jochym P.T., Kremer R.K., Łażewski J., Ptok A., Piekarz P., Brücher E., Oleś A.M.
    Physic. Rev. Mat., 2022, 6(11), 113601 [DOI]
  10. High efficiency configuration space sampling – Probing the distribution of available states
    Jochym P.T., Łazewski J.
    SciPost Phys., 2021, 10(6), 129 [DOI]
  11. Lattice Dynamics and Structural Phase Transitions in Eu2O3
    Łażewski J., Sternik M., Jochym P.T., Kalt J., Stankov S., Chumakov A.I., Göttlicher J., Rüffer R., Baumbach T., Piekarz P.
    Inorg. Chem., 2021, 60(13), pp. 9571-9579 [DOI]
  12. Chiral phonons in the honeycomb sublattice of layered CoSn-like compounds
    Ptok A., Kobiałka A., Sternik M., Łażewski J., Jochym P.T., Oleś A.M., Stankov S., Piekarz P.
    Phys. Rev. B, 2021, 104(5), 054305 [DOI]
  13. Electronic and dynamical properties of : Role of layers and expected orbital order
    Ptok A., Kapcia K.J., Jochym P.T., Łażewski J., Oleś A.M., Piekarz P.
    Phys. Rev. B, 2021, 104(4), L041109 [DOI]
  14. Lattice dynamics of endotaxial silicide nanowires
    Kalt J., Sternik M., Krause B., Sergueev I., Mikolasek M., Merkel D., Bessas D., Sikora O., Vitova T., Göttlicher J., Steininger R., Jochym P.T., Ptok A., Leupold O., Wille H.-C., Chumakov A.I., Piekarz P., Parlinski K., Baumbach T., Stankov S.
    Phys. Rev. B, 2020, 102(19), 195414 [DOI]
  15. Lattice dynamics and polarization-dependent phonon damping in α -phase FeSi2 nanostructures
    Kalt J., Sternik M., Krause B., Sergueev I., Mikolasek M., Bessas D., Sikora O., Vitova T., Göttlicher J., Steininger R., Jochym P.T., Ptok A., Leupold O., Wille H.-C., Chumakov A.I., Piekarz P., Parlinski K., Baumbach T., Stankov S.
    Phys. Rev. B, 2020, 101(16), 165406 [DOI]
  16. Phonon mode potential and its contribution to anharmonism
    Jochym P.T., Łażewski J., Szuszkiewicz W.
    Sci. Rep., 2020, 10(1), 19783 [DOI]
  17. Ab initio and nuclear inelastic scattering studies of Fe3Si/GaAs heterostructures
    Sikora O., Kalt J., Sternik M., Ptok A., Jochym P.T., Lazewski J., Parlinski K., Piekarz P., Sergueev I., Wille H.-C., Herfort J., Jenichen B., Baumbach T., Stankov S.
    Phys. Rev. B, 2019, 99(13), 134303 [DOI]
  18. DFT modelling of the edge dislocation in 4H-SiC
    Łażewski J., Jochym P.T., Piekarz P., Sternik M., Parlinski K., Cholewiński J., Dłużewski P., Krukowski S.
    J Mater Sci, 2019, 54(15), pp. 10737-10745 [DOI]
  19. Electronic and lattice properties of noncentrosymmetric superconductors ThTSi (T=Co, Ir, Ni, and Pt)
    Ptok A., Domieracki K., Kapcia K.J., Łazewski J., Jochym P.T., Sternik M., Piekarz P., Kaczorowski D.
    Phys. Rev. B, 2019, 100(16), 165130 [DOI]
  20. Vibrational properties and stability of FePt nanoalloys
    Piekarz P., Łazewski J., Jochym P.T., Sternik M., Parlinski K.
    Phys. Rev. B, 2017, 95(13), 134303 [DOI]
  21. Microstructure and mechanical properties of the novel Hf25Sc25Ti25Zr25 equiatomic alloy with hexagonal solid solutions
    Rogal Ł., Czerwinski F., Jochym P.T., Litynska-Dobrzynska L.
    Mater. Des., 2016, 92, pp. 8-17 [DOI]
  22. Soft phonon modes in rutile TiO2
    Wehinger B., Bosak A., Jochym P.T.
    Phys. Rev. B, 2016, 93(1), 014303 [DOI]
  23. Lattice dynamics of neodymium: Influence of 4f electron correlations
    Waller O., Piekarz P., Bosak A., Jochym P.T., Ibrahimkutty S., Seiler A., Krisch M., Baumbach T., Parlinski K., Stankov S.
    Phys. Rev. B, 2016, 94(1), 014303 [DOI]
  24. Dynamics and stability of icosahedral Fe-Pt nanoparticles
    Jochym P.T., Łazewski J., Sternik M., Piekarz P.
    Phys. Chem. Chem. Phys., 2015, 17(42), pp. 28096-28102 [DOI]
  25. Dynamical properties of ordered Fe-Pt alloys
    Sternik M., Couet S., Łazewski J., Jochym P.T., Parlinski K., Vantomme A., Temst K., Piekarz P.
    J Alloys Compd, 2015, 651, pp. 528-536 [DOI]
  26. Influence of isolated and clustered defects on electronic and dielectric properties of wüstite
    Wdowik U.D., Piekarz P., Jochym P.T., Parlinski K., Oles̈ A.M.
    Phys. Rev. B Condens. Matter Mater. Phys., 2015, 91(19), 195111 [DOI]
  27. Thermodynamic properties and phase stability of wadsleyite II
    Tokár K., Jochym P.T., Piekarz P., Łazewski J., Sternik M., Parlinski K.
    Phys. Chem. Miner., 2013, 40(3), pp. 251-257 [DOI]
  28. Equivalence of the boson peak in glasses to the transverse acoustic van, hove singularity in crystals
    Chumakov A.I., Monaco G., Monaco A., Crichton W.A., Bosak A., Rüffer R., Meyer A., Kargl F., Comez L., Fioretto D., Giefers H., Roitsch S., Wortmann G., Manghnani M.H., Hushur A., Williams Q., Balogh J., Parliński K., Jochym P., Piekarz P.
    Phys Rev Lett, 2011, 106(22), 225501 [DOI]
  29. Comparative ab initio study of lattice dynamics and thermodynamics of Fe2SiO4-and Mg2SiO4-spinels
    Derzsi M., Piekarz P., Tokár K., Jochym P.T., Łaewski J., Sternik M., Parlinski K.
    J Phys Condens Matter, 2011, 23(10), 105401 [DOI]
  30. Structure and elastic properties of Mg(OH)2 from density functional theory
    Jochym P.T., Oleś A.M., Parlinski K., Łazewski J., Piekarz P., Sternik M.
    J Phys Condens Matter, 2010, 22(44), 445403 [DOI]
  31. DFT study of structure stability and elasticity of wadsleyite II
    Tokár K., Jochym P.T., Parlinski K., Łaewski J., Piekarz P., Sternik M.
    J Phys Condens Matter, 2010, 22(14), 145402 [DOI]
  32. Phonon mechanism of the magnetostructural phase transition in MnAs
    Łazewski J., Piekarz P., Toboła J., Wiendlocha B., Jochym P.T., Sternik M., Parlinski K.
    Phys Rev Lett, 2010, 104(14), 147205 [DOI]
  33. Electronic and optical properties of the Mg2-x Fex SiO4 spinel:From band insulator to Mott insulator
    Tokár K., Piekarz P., Derzsi M., Jochym P.T., Łazewski J., Sternik M., Oleś A.M., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2010, 82(19), 195116 [DOI]
  34. Effects of Coulomb interaction on the electronic structure and lattice dynamics of the Mott insulator Fe2 SiO4 spinel
    Derzsi M., Piekarz P., Jochym P.T., Łazewski J., Sternik M., Oleś A.M., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2009, 79(20), 205105 [DOI]
  35. Probing the dynamical properties of the metastable bcc Fex Co1-x phase
    Laenens B., Planckaert N., Sternik M., Jochym P.T., Parliński K., Vantomme A., Meersschaut J.
    Phys. Rev. B Condens. Matter Mater. Phys., 2009, 79(22), 224303 [DOI]
  36. Crystal structure, hydrogen bonds, and lattice dynamics in kanemite from first-principles calculations
    Piekarz P., Derzsi M., Jochym P.T., Łazewski J., Sternik M., Parlinski K., Serwicka E.M.
    Phys. Rev. B Condens. Matter Mater. Phys., 2009, 79(13), 134105 [DOI]
  37. Ab initio calculations of magnetic structure and lattice dynamics of Fe/Pt multilayers
    Jochym P.T., Parlinski K., Oleś A.M.
    Eur. Phys. J. B, 2008, 61(2), pp. 173-179 [DOI]
  38. The first principles study on PtC compound
    Deligoz E., Ciftci Y.O., Jochym P.T., Colakoglu K.
    Mater Chem Phys, 2008, 111(1), pp. 29-33 [DOI]
  39. Probing the Coulomb interaction of PuCoGa5 by phonon spectroscopy
    Raymond S., Piekarz P., Sanchez J.P., Serrano J., Krisch M., Detlefs B., Rebizant J., Metoki N., Kaneko K., Jochym P.T., Oleś A.M., Parlinski K.
    J Alloys Compd, 2007, 444-445(SPEC. ISS.), pp. 104-108 [DOI]
  40. Ab initio heat capacity and atomic temperature factors of chalcopyrites
    Neumann H., Łazewski J., Jochym P.T., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2007, 75(22), 224301 [DOI]
  41. Superstructure stability and site preferences in β-NiAl doped with Fe, Co and Cr. Monte Carlo simulation
    Oramus P., Biborski A., Kozubski R., Parliński K., Jochym P.T.
    Arch. Metall. Mater., 2007, 52(1), pp. 33-40
  42. Ab initio calculations of magnetic structure and lattice dynamics in Fe FeSi multilayers
    Jochym P.T., Parlinski K., Oleś A.M.
    Phys. Rev. B Condens. Matter Mater. Phys., 2006, 73(22), 224411 [DOI]
  43. Influence of local Coulomb interactions on lattice dynamics in PuCoGa5 superconductor
    Piekarz P., Oleś A.M., Parlinski K., Jochym P.T.
    Phys B Condens Matter, 2006, 378-380(SPEC. ISS.), pp. 1029-1030 [DOI]
  44. Modelling of defects and amorphisation by ball milling of γ-TiAl
    Jochym P.T., Parlinski K., Maziarz W., Dutkiewicz J.
    Intermet, 2006, 14(12), pp. 1397-1402 [DOI]
  45. Probing the coulomb interaction of the unconventional superconductor PuCoGa5 by phonon spectroscopy
    Raymond S., Piekarz P., Sanchez J.P., Serrano J., Krisch M., Janoušová B., Rebizant J., Metoki N., Kaneko K., Jochym P.T., Oleś A.M., Parlinski K.
    Phys Rev Lett, 2006, 96(23), 237003 [DOI]
  46. Atomic vibrational density of states of crystalline β-FeSi 2 and amorphous FeSi 2 thin films
    Walterfang M., Keune W., Schuster E., Zayak A.T., Entel P., Sturhahn W., Toellner T.S., Alp E.E., Jochym P.T., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2005, 71(3), 035309 [DOI]
  47. First-principles study of phonon modes in PuCoGa5 superconductor
    Piekarz P., Parlinski K., Jochym P.T., Oleś A.M., Sanchez J.-P., Rebizant J.
    Phys. Rev. B Condens. Matter Mater. Phys., 2005, 72(1), 014521 [DOI]
  48. Quasiharmonic approach to a second-order phase transition
    Łazewski J., Jochym P.T., Piekarz P., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2004, 70(10), 104109, pp. 104109-1 [DOI]
  49. Elastic tensor of the forsterite (Mg2SiO4) under pressure
    Jochym P.T., Parlinski K., Krzywiec P.
    Comput Mater Sci, 2004, 29(4), pp. 414-418 [DOI]
  50. Local modes of Fe and Co atoms in NiAl intermetallics
    Parlinski K., Jochym P.T., Leupold O., Chumakov A.I., Rüffer R., Schober H., Jianu A., Dutkiewicz J., Maziarz W.
    Phys. Rev. B Condens. Matter Mater. Phys., 2004, 70(22), 224304, pp. 224304-1 [DOI]
  51. Ab initio elasticity of chalcopyrites
    Łazewski J., Neumann H., Jochym P.T., Parlinski K.
    J Appl Phys, 2003, 93(7), pp. 3789-3795 [DOI]
  52. Atomic modelling of Co, Cr, Fe, antisite atoms and vacancies in B2-NiAl
    Parlinski K., Jochym P.T., Kozubski R., Oramus P.
    Intermet, 2003, 11(2), pp. 157-160 [DOI]
  53. Elastic properties and phase stability of AgBr under pressure
    Jochym P.T., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2002, 65(2), pp. 1-6 [DOI]
  54. Band structure, born effective charges, and lattice dynamics of CuInS2 from ab initio calculations
    Łazewski J., Jochym P.T., Parlinski K.
    J Chem Phys, 2002, 117(6), pp. 2726 [DOI]
  55. High-pressure and thermal properties of γ-Mg2SiO4from first-principles calculations
    Piekarz P., Jochym P.T., Parlinski K., Lazewski J.
    J Chem Phys, 2002, 117(7), pp. 3340-3344 [DOI]
  56. Elastic properties and phase stability of AgBr under pressure
    Jochym P.T., Parlinski K.
    Phys. Rev. B Condens. Matter Mater. Phys., 2002, 65(2), 024106, pp. 241061-241066
  57. Lattice dynamics of Mg2SiO4
    Łazewski J., Jochym P.T., Parlinski K., Piekarz P.
    J. Mol. Struct., 2001, 596(1-3), pp. 3-6 [DOI]
  58. Influence of magnetic interaction on lattice dynamics of FeBO3
    Parlinski K., Łazewski J., Jochym P.T., Chumakov A., Rüffer R., Kresse G.
    Europhys. Lett., 2001, 56(2), pp. 275-281 [DOI]
  59. Application of quantum mechanics in geophysics - forsterite elastic constans under high pressure (preliminary results); [Wykorzystanie mechaniki kwantowej w geofizyce - stale sprȩzyste forsterytu w wysokich ciśnieniach (wyniki wstȩpne)]
    Jochym P.T., Krzywiec P.
    Prz. Geol., 2000, 48(8), pp. 683-688
  60. Ab initio lattice dynamics and elastic constants of ZrC
    Jochym P.T., Parlinski K.
    Eur Phys J B, 2000, 15(2), pp. 265-268 [DOI]
  61. TiC lattice dynamics from ab initio calculations
    Jochym P.T., Parlinski K., Sternik M.
    Eur Phys J B, 1999, 10(1), pp. 9-13 [DOI]
  62. Lattice dynamics of Ga1-xAlxAs studied by ab initio calculations
    Sternik M., Jochym P.T., Parlinski K.
    Comput Mater Sci, 1999, 13(4), pp. 232-238 [DOI]
  63. Chemotaxis of Amoeba proteus in the developing pH gradient within a pocket-like chamber studied with the computer assisted method
    Korohoda W., Golda J., Sroka J., Wojnarowicz A., Jochym P., Madeja Z.
    CELL MOTIL. CYTOSKELETON, 1997, 38(1), pp. 38-53 [DOI]
  64. Characteristics of the Miocene subduction zone of the Polish Carpathians: Results of flexural modelling; [Charakterystyka mioceńskiej strefy subdukcji Karpat Polskich na podstawie wyników modelowań ugiȩcia litosfery]
    Krzywiec P., Jochym P.
    Prz. Geol., 1997, 45(8), pp. 785-792
  65. Microscopic stress tensor of nematic liquid crystal binary mixtures
    Chrzanowska A., Jochym P.T.
    Z. Naturforsch. Sect. A J. Phys. Sci., 1996, 51(3), pp. 147-150 [DOI]
  66. Evaluation of dispersion relations of crystals from molecular-dynamics
    Jochym P.T., Sternik M., Parliński K.
    Comput Mater Sci, 1996, 6(4), pp. 339-342 [DOI]
  67. Characteristics of the subduction zone in the eastern Polish Carpathians - Preliminary results of flexural modelling
    Krzywiec P., Jochym P.
    Publ. Inst. Geophys. Pol. Acad. Sci. Ser. M Misc., 1996, 18(273), pp. 155-161
  68. Evolution of Hopf configuration of spin field in the Heisenberg model
    Jochym P.T., Sokalski K.
    Journal of Physics A: General Physics, 1994, 27(4), 029, pp. 1353-1361 [DOI]
  69. Variational approach to the Bogomolny separation
    Jochym P.T., Sokalski K.
    Journal of Physics A: Mathematical and General, 1993, 26(15), 031, pp. 3837-3844 [DOI]
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