Son, Sang-Kil, Ph.D.

All publications

1999

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2008

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2019

2020

2021

2022

2023

2024

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2023–2024

73. Laura Budewig, Sang-Kil Son, Zoltan Jurek, Malik Muhammad Abdullah, Marina Tropmann-Frick, et al., X-ray-induced atomic transitions via machine learning: A computational investigation, Phys. Rev. Res. 6, 013265 (2024)
72. Tommaso Mazza, Thomas M. Baumann, Rebecca Boll, Alberto De Fanis, Patrik Grychtol, et al., The beam transport system for the Small Quantum Systems instrument at the European XFEL: optical layout and first commissioning results, J. Synchrotron Radiat. 30, 457–467 (2023)
71. Aljoscha Rörig, Sang-Kil Son, Tommaso Mazza, Philipp Schmidt, Thomas M. Baumann, et al., Multiple-core-hole resonance spectroscopy with ultraintense X-ray pulses, Nat. Commun. 14, 5738 (2023)
70. Laura Budewig, Sang-Kil Son, and Robin Santra, State-resolved ionization dynamics of neon atom induced by x-ray free-electron-laser pulses, Phys. Rev. A 107, 013102 (2023)
69. Niels Breckwoldt, Sang-Kil Son, Tommaso Mazza, Aljoscha R"orig, Rebecca Boll, et al., Machine-learning calibration of intense x-ray free-electron-laser pulses using Bayesian optimization, Phys. Rev. Res. 5, 023114 (2023)

2022

68. Rebecca Boll, Julia M. Schäfer, Benoît Richard, Kilian Fehre, Gregor Kastirke, et al., X-ray multiphoton-induced Coulomb explosion images complex single molecules, Nat. Phys. 18, 423–428 (2022)
67. Laura Budewig, Sang-Kil Son, and Robin Santra, Theoretical investigation of orbital alignment of x-ray-ionized atoms in exotic electronic configurations, Phys. Rev. A 105, 033111 (2022)
66. Rui Jin, Zoltan Jurek, Robin Santra, and Sang-Kil Son, Plasma environmental effects in the atomic structure for simulating x-ray free-electron-laser-heated solid-density matter, Phys. Rev. E 106, 015206 (2022)
65. Stanislaw Wirok-Stoletow, Rui Jin, Daria Kolbasova, Sang-Kil Son, Andrew Aquila, et al., Nonsequential two-photon absorption in solid Ge irradiated by an intense x-ray free-electron-laser pulse, Phys. Rev. A 106, 023118 (2022)

2021

64. Xiang Li, Ludger Inhester, Seyyed J. Robatjazi, Benjamin Erk, Rebecca Boll, et al., Pulse energy and pulse duration effects in the ionization and fragmentation of iodomethane by ultraintense hard x rays, Phys. Rev. Lett. 127, 093202 (2021)
63. Xiang Li, Ludger Inhester, Timur Osipov, Rebecca Boll, Ryan Coffee, et al., Electron-ion coincidence measurements of molecular dynamics with intense x-ray pulses, Sci. Rep. 11, 505 (2021)
62. Rui Jin, Malik Muhammad Abdullah, Zoltan Jurek, Robin Santra, and Sang-Kil Son, Transient ionization potential depression in nonthermal dense plasmas at high x-ray intensity, Phys. Rev. E 103, 023203 (2021)
61. Yoshiaki Kumagai, Zoltan Jurek, Weiqing Xu, Vikrant Saxena, Hironobu Fukuzawa, et al., Suppression of thermal nanoplasma emission in clusters strongly ionized by hard x-rays, J. Phys. B: At. Mol. Opt. Phys. 54, 044001 (2021) [Special issue on Frontiers of AMO Science with FELs and Synchrotron Radiation]
60. Daria Kolbasova, Maximilian Hartmann, Rui Jin, Alexander Blättermann, Christian Ott, et al., Probing ultrafast coherent dynamics in core-excited xenon by using attosecond XUV-NIR transient absorption spectroscopy, Phys. Rev. A 103, 043102 (2021)
59. Aaron C. LaForge, Sang-Kil Son, Debadarshini Mishra, Markus Ilchen, Stephen Duncanson, et al., Resonance-enhanced multiphoton ionization in the x-ray regime, Phys. Rev. Lett. 127, 213202 (2021)
58. Till Jahnke, Renaud Guillemin, Ludger Inhester, Sang-Kil Son, Gregor Kastirke, et al., Inner-shell-ionization-induced femtosecond structural dynamics of water molecules imaged at an x-ray free-electron laser, Phys. Rev. X 11, 041044 (2021)

2020

57. Andrea Trabattoni, Joss Wiese, Umberto De Giovannini, Jean-François Olivieri, Terry Mullins, et al., Setting the photoelectron clock through molecular alignment, Nat. Commun. 11, 2546 (2020)
56. Yoshiaki Kumagai, Zoltan Jurek, Weiqing Xu, Hironobu Fukuzawa, Koji Motomura, et al., Real-time observation of disintegration processes within argon clusters ionized by a hard-x-ray pulse of moderate fluence, Phys. Rev. A 101, 023412 (2020)
55. Sang-Kil Son, Rebecca Boll, and Robin Santra, Breakdown of frustrated absorption in x-ray sequential multiphoton ionization, Phys. Rev. Res. 2, 023053 (2020)
54. John Jasper Bekx, Sang-Kil Son, Beata Ziaja, and Robin Santra, Electronic-structure calculations for nonisothermal warm dense matter, Phys. Rev. Res. 2, 033061 (2020)

2019

53. Koudai Toyota, Zoltan Jurek, Sang-Kil Son, Hironobu Fukuzawa, Kiyoshi Ueda, et al., xcalib: a focal spot calibrator for intense X-ray free-electron laser pulses based on the charge state distributions of light atoms, J. Synchrotron Radiat. 26, 1017–1030 (2019)
52. Yajiang Hao, Ludger Inhester, Sang-Kil Son, and Robin Santra, Theoretical evidence for the sensitivity to molecular size of charge-rearrangement-enhanced x-ray ionization, Phys. Rev. A 100, 013402 (2019)
51. Nora Berrah, Alvaro Sanchez-Gonzalez, Zoltan Jurek, Razib Obaid, Hui Xiong, et al., Femtosecond-resolved observation of the fragmentation of buckminsterfullerene following X-ray multiphoton ionization, Nat. Phys. 15, 1279–1283 (2019)

2018

50. Yoshiaki Kumagai, Zoltan Jurek, Weiqing Xu, Hironobu Fukuzawa, Koji Motomura, et al., Radiation-induced chemical dynamics in Ar clusters exposed to strong x-ray pulses, Phys. Rev. Lett. 120, 223201 (2018)
49. Ludger Inhester, Bart Oostenrijk, Minna Patanen, Esko Kokkonen, Stephen H. Southworth, et al., Chemical understanding of the limited site-specificity in molecular inner-shell photofragmentation, J. Phys. Chem. Lett. 9, 1156–1163 (2018)
48. Julia M. Schäfer, Ludger Inhester, Sang-Kil Son, Reinhold F. Fink, and Robin Santra, Electron and fluorescence spectra of a water molecule irradiated by an x-ray free-electron laser pulse, Phys. Rev. A 97, 053415 (2018)
47. Benedikt Rudek, Koudai Toyota, Lutz Foucar, Benjamin Erk, Rebecca Boll, et al., Relativistic and resonant effects in the ionization of heavy atoms by ultra-intense hard X-rays, Nat. Commun. 9, 4200 (2018)
46. John Jasper Bekx, Sang-Kil Son, Robin Santra, and Beata Ziaja, Ab initio calculation of electron-impact-ionization cross sections for ions in exotic electron configurations, Phys. Rev. A 98, 022701 (2018)
45. Malik Muhammad Abdullah, Sang-Kil Son, Zoltan Jurek, and Robin Santra, Towards the theoretical limitations of x-ray nanocrystallography at high intensity: the validity of the effective-form-factor description, IUCrJ 5, 699–705 (2018)

2017

44. Sang-Kil Son, Otfried Geffert, and Robin Santra, Compton spectra of atoms at high x-ray intensity, J. Phys. B: At. Mol. Opt. Phys. 50, 064003 (2017) [special issue: emerging leaders]
43. Artem Rudenko, Ludger Inhester, Kota Hanasaki, Xiang Li, Seyyed J. Robatjazi, et al., Femtosecond response of polyatomic molecules to ultra-intense hard X-rays, Nature 546, 129–132 (2017)
42. Koudai Toyota, Sang-Kil Son, and Robin Santra, Interplay between relativistic energy corrections and resonant excitations in x-ray multiphoton ionization dynamics of Xe atoms, Phys. Rev. A 95, 043412 (2017)
41. Malik Muhammad Abdullah, Anurag, Zoltan Jurek, Sang-Kil Son, and Robin Santra, Molecular-dynamics approach for studying the nonequilibrium behavior of x-ray-heated solid-density matter, Phys. Rev. E 96, 023205 (2017)

2016

40. Zoltan Jurek, Sang-Kil Son, Beata Ziaja, and Robin Santra, XMDYN and XATOM: versatile simulation tools for quantitative modeling of X-ray free-electron laser induced dynamics of matter, J. Appl. Cryst. 49, 1048–1056 (2016) [special issue on free-electron laser software]
39. Beata Ziaja, Vikrant Saxena, Sang-Kil Son, Nikita Medvedev, Benjamin Barbrel, et al., Kinetic Boltzmann approach adapted for modeling highly ionized matter created by x-ray irradiation of a solid, Phys. Rev. E 93, 053210 (2016)
38. Malik Muhammad Abdullah, Zoltan Jurek, Sang-Kil Son, and Robin Santra, Calculation of x-ray scattering patterns from nanocrystals at high x-ray intensity, Struct. Dyn. 3, 054101 (2016)
37. Ludger Inhester, Kota Hanasaki, Yajiang Hao, Sang-Kil Son, and Robin Santra, X-ray multiphoton ionization dynamics of a water molecule irradiated by an x-ray free-electron laser pulse, Phys. Rev. A 94, 023422 (2016)

2015

36. Yajiang Hao, Ludger Inhester, Kota Hanasaki, Sang-Kil Son, and Robin Santra, Efficient electronic structure calculation for molecular ionization dynamics at high x-ray intensity, Struct. Dyn. 2, 041707 (2015) [special issue on biology with x-ray lasers 2]
35. Tetsuya Tachibana, Zoltan Jurek, Hironobu Fukuzawa, Koji Motomura, Kiyonobu Nagaya, et al., Nanoplasma formation by high intensity hard x-rays, Sci. Rep. 5, 10977 (2015)
34. Lorenzo Galli, Sang-Kil Son, Thomas A. White, Robin Santra, Henry N. Chapman, et al., Towards RIP using free electron laser SFX data, J. Synchrotron Radiat. 22, 249–255 (2015)
33. Lorenzo Galli, Sang-Kil Son, Thomas R.M. Barends, Thomas A. White, Anton Barty, et al., Towards phasing using high x-ray intensity, IUCrJ 2, 627–634 (2015)
32. Beata Ziaja, Zoltan Jurek, Nikita Medvedev, Vikrant Saxena, Sang-Kil Son, et al., Towards realistic simulations of macromolecules irradiated under the conditions of coherent diffraction imaging with an x-ray free-electron laser, Photonics 2, 256–269 (2015)
31. Lorenzo Galli, Sang-Kil Son, M. Klinge, S. Bajt, A. Barty, et al., Electronic damage in S atoms in a native protein crystal induced by an intense x-ray free-electron laser pulse, Struct. Dyn. 2, 041703 (2015) [special issue on biology with x-ray lasers 2]

2014

30. Sang-Kil Son, Robert Thiele, Zoltan Jurek, Beata Ziaja, and Robin Santra, Quantum-mechanical calculation of ionization potential lowering in dense plasmas, Phys. Rev. X 4, 031004 (2014)
29. Brendan Murphy, Timur Osipov, Zoltan Jurek, Li Fang, Sang-Kil Son, et al., Femtosecond x-ray-induced explosion of C₆₀ at extreme intensity, Nat. Commun. 5, 4281 (2014)
28. Jan Malte Slowik, Sang-Kil Son, Gopal Dixit, Zoltan Jurek, and Robin Santra, Incoherent x-ray scattering in single molecule imaging, New J. Phys. 16, 073042 (2014)

2013

27. L. Müller, C. Gutt, B. Pfau, S. Schaffert, J. Geilhufe, et al., Breakdown of the x-ray resonant magnetic scattering signal during intense pulses of extreme ultraviolet free-electron-laser radiation, Phys. Rev. Lett. 110, 234801 (2013)
26. H. Fukuzawa, Sang-Kil Son, K. Motomura, S. Mondal, K. Nagaya, et al., Deep inner-shell multiphoton ionization by intense x-ray free-electron laser pulses, Phys. Rev. Lett. 110, 173005 (2013)
25. Benedikt Rudek, Daniel Rolles, Sang-Kil Son, Lutz Foucar, Benjamin Erk, et al., Resonance-enhanced multiple ionization of krypton at an x-ray free-electron laser, Phys. Rev. A 87, 023413 (2013)
24. Beata Ziaja, Zoltan Jurek, Nikita Medvedev, Sang-Kil Son, Robert Thiele, et al., Photoelectron spectroscopy method to reveal ionization potential lowering in nanoplasmas, J. Phys. B: At. Mol. Opt. Phys. 46, 164009 (2013) [special issue on frontiers of free-electron laser science]
23. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Determination of multiwavelength anomalous diffraction coefficients at high x-ray intensity, J. Phys. B: At. Mol. Opt. Phys. 46, 164015 (2013) [special issue on frontiers of free-electron laser science]
22. K. Motomura, H. Fukuzawa, Sang-Kil Son, S. Mondal, T. Tachibana, et al., Sequential multiphoton multiple ionization of atomic argon and xenon irradiated by x-ray free-electron laser pulses at SACLA, J. Phys. B: At. Mol. Opt. Phys. 46, 164024 (2013) [special issue on frontiers of free-electron laser science]
21. Siddharth Bhardwaj, Sang-Kil Son, Kyung-Han Hong, Chien-Jen Lai, Franz X. Kärtner, et al., Recombination-amplitude calculations of noble gases, in both length and acceleration forms, beyond the strong-field approximation, Phys. Rev. A 88, 053405 (2013)

2012

20. Arina Sytcheva, Stefan Pabst, Sang-Kil Son, and Robin Santra, Enhanced nonlinear response of Ne⁸⁺ to intense ultrafast x rays, Phys. Rev. A 85, 023414 (2012)
19. Benedikt Rudek, Sang-Kil Son, Lutz Foucar, Sascha W. Epp, Benjamin Erk, et al., Ultra-efficient ionization of heavy atoms by intense x-ray free-electron laser pulses, Nat. Photon. 6, 858–865 (2012)
18. R. W. Dunford, S. H. Southworth, D. Ray, E. P. Kanter, B. Krässig, et al., Evidence for interatomic Coulombic decay in Xe K-shell-vacancy decay of XeF₂, Phys. Rev. A 86, 033401 (2012)
17. Sang-Kil Son and Robin Santra, Monte Carlo calculation of ion, electron, and photon spectra of xenon atoms in x-ray free-electron laser pulses, Phys. Rev. A 85, 063415 (2012)
16. Robert Thiele, Sang-Kil Son, Beata Ziaja, and Robin Santra, Effect of screening by external charges on the atomic orbitals and photoinduced processes within the Hartree-Fock-Slater atom, Phys. Rev. A 86, 033411 (2012)

2011

15. Sang-Kil Son, Voronoi-cell finite difference method for accurate electronic structure calculation of polyatomic molecules on unstructured grids, J. Comput. Phys. 230, 2160–2173 (2011)
14. Sang-Kil Son, Linda Young, and Robin Santra, Impact of hollow-atom formation on coherent x-ray scattering at high intensity, Phys. Rev. A 83, 033402 (2011)
13. Gilles Doumy, C. Roedig, Sang-Kil Son, C. I. Blaga, A. D. DiChiara, et al., Nonlinear atomic response to intense ultrashort x rays, Phys. Rev. Lett. 106, 083002 (2011)
12. Sang-Kil Son, Henry N. Chapman, and Robin Santra, Multiwavelength anomalous diffraction at high x-ray intensity, Phys. Rev. Lett. 107, 218102 (2011)

2008–2010

11. Sang-Kil Son, Dmitry A. Telnov, and Shih-I Chu, Probing the origin of elliptical high-order harmonic generation from aligned molecules in linearly polarized laser fields, Phys. Rev. A 82, 043829 (2010)
10. Sang-Kil Son, Siyuan Han, and Shih-I Chu, Floquet formulation for the investigation of multiphoton quantum interference in a superconducting qubit driven by a strong ac field, Phys. Rev. A 79, 032301 (2009)
9. Sang-Kil Son and Shih-I Chu, Multielectron effects on the orientation dependence and photoelectron angular distribution of multiphoton ionization of CO₂ in strong laser fields, Phys. Rev. A 80, 011403(R) (2009)
8. Sang-Kil Son and Shih-I Chu, Theoretical study of orientation-dependent multiphoton ionization of polyatomic molecules in intense ultrashort laser fields: A new time-dependent Voronoi-cell finite difference method, Chem. Phys. 366, 91–102 (2009)
7. Juan J. Carrera, Sang-Kil Son, and Shih-I Chu, Ab initio theoretical investigation of the frequency comb structure and coherence in the vuv-xuv regimes via high-order harmonic generation, Phys. Rev. A 77, 031401(R) (2008)
6. Sang-Kil Son and Shih-I Chu, Many-mode Floquet theoretical approach for coherent control of multiphoton dynamics driven by intense frequency-comb laser fields, Phys. Rev. A 77, 063406 (2008)

1999–2002

5. Young-Kyu Han, Kyoung Hoon Kim, Sang-Kil Son, and Yoon Sup Lee, Effects of intramolecular basis set superposition error on conformational energy difference of 1,2-difluoroethane and 1,2-dimethoxyethane, Bull. Korean Chem. Soc. 23, 1267–1271 (2002)
4. Chang Seop Hong, Ja-eung Koo, Sang-Kil Son, Yoon Sup Lee, Yaung-Soo Kim, et al., Unusual ferromagnetic couplings in single end-to-end azide-bridged cobalt(II) and nickel(II) chain systems, Chem. Eur. J. 7, 4243–4252 (2001)
3. Young-Kyu Han, Cheolbeom Bae, Sang-Kil Son, and Yoon Sup Lee, Spin-orbit effects on the transactinide p-block element monohydrides MH (M=element 113-118), J. Chem. Phys. 112, 2684–2691 (2000)
2. Chang Seop Hong, Sang-Kil Son, Yoon Sup Lee, Moo-Jin Jun, and Youngkyu Do, High-dimensional manganese(II) compounds with noncovalent and/or covalent bonds derived from flexible ligands: Self-assembly and structural transformation, Inorg. Chem. 38, 5602–5610 (1999)
1. Young-Kyu Han, Sang-Kil Son, Yoon Jeong Choi, and Yoon Sup Lee, Structures and stabilities for halides and oxides of transactinide elements Rf, Db, and Sg calculated by relativistic effective core potential methods, J. Phys. Chem. A 103, 9109–9115 (1999)

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