Dr. Sergey Peredkov - X-ray Spectroscopy Instrumentation

Dr. Sergey Peredkov
Head of Group X-ray Spectroscopy Instrumentation
Department Inorganic Spectroscopy


Diploma (Engineer-Physicist)National Research Nuclear University, The Faculty of Experimental and Theoretical Physics, Moscow, Russia (1993)
Research-engineerKurchatov Synchrotron Radiation Source, Moscow, Russia (1993-1998)
Research-engineerMAX-lab, Lund University, Sweden (1998-2003)
Ph.d. (Physics) Lund University, Natural Science Faculty, Department of Synchrotron Radiation Research, Sweden (2007)
PostdocBESSY II synchrotron source, Berlin, Germany (2007-2011)
Support ScientistMAX-lab, Lund University, Sweden (2011-2013)
ScientistMPI CEC, Department of Molecular Theory and Spectroscopy (2013-2016)
Group leader
MPI CEC, Department Inorganic Spectroscopy (since 2017)


Download: Publikationsliste (.pdf)


  • Szlachetko J., Nachtegaal M., Grolimund D., Knopp G., Peredkov S., Czapla–Masztafiak J. and Milne C. J. (2017) "A Dispersive Inelastic X-ray Scattering Spectrometer for Use at X-ray Free Electron Lasers" Applied Sciences, 7(9), 899


  • Peredkov S., Peters S., Al-Hada M., Erko A., Neeb M., Eberhardt W. (2016) “Structural investigation of supported Cun-clusters under vacuum and ambient air conditions using EXAFS spectroscopy” Catalysis Science & Technology, 6(18), 6942


  • Meyer J., Niedner-Schatteburg G, Peredkov S., Eberhardt W., Neeb M., Palutke S., Martins M., Wurth W. (2015) “The spin and orbital contributions to the total magnetic moments of free Fe, Co and Ni clusters” Journal of Chemical Physics, 143(10), 104302
  • Al-Hada,  M., Peters, S.,  Peredkov, P.,  Neeb, M., Eberhardt, W. (2015) Nanoisland formation of small Agn-clusters on HOPG as determined by inner-shell photoionization spectroscopy, Surf. Sci, 639, 43.
  • Dielman, D., Tombers, M., Peters, L., Meyer, J.,  Peredkov, P., Jalink. L., Neeb, M., Eberhardt, W., Rasing, T., Niedner-Schstteburg, G., Kirilyuk, A. (2015) Orbit and spin resolved magnetic properties of size selected [ConRh]+ and [ConAu]+ nanoalloy clusters, PCCP, 17, 42, 28372.


  • T.N.A. Nguyen, R. Knut , V. Fallahi , S. Chung, Q.T. Le, S.M. Mohseni, O. Karis, S. Peredkov, R.K. Dumas, C.W. Miller, J. Akermen, Depth-Dependent Magnetization Profiles of Hybrid Exchange Springs, Phys. Rev. App. 2, 044014 (2014)
  • A. N. Kravtsova, K.A. Lomachenko, A. V. Soldatov, J. Meyer, G. Niedner-Schatteburg, S. Peredkov, W. Eberhardt, M. Neeb, Atomic and electronic structure of free niobium nanoclusters: Simulation of the M4,5-XANES spectrum of Nb13+, J. of El. Spec. and Rel. Phenom.,195, p. 189 (2014)
  • Peters S., Peredkov S., Al-Hada M., Neeb M., Eberhardt W. (2014) “Positive XPS binding energy shift of supported CuN-clusters governed by initial state effects” Journal of Electron Spectroscopy and Related Phenomena 192, 52


  • Peters S., Peredkov S., Neeb M., Al-Hada M., Eberhardt W. (2013) “Size-dependent Auger spectra and two-hole Coulomb interaction of small supported Cu-clusters” Physical Chemistry Chemical Physics 15, 9575
  • S. Peters, S. Peredkov, M. Neeb, W. Eberhardt, M. Al-Hada, Size-dependent XPS spectra of small supported Au-clusters, Surf. Sci, 608, 129 (2013)


  • Peredkov S., Neeb M., Eberhardt W., Meyer J., Tombers M., Kampschulte H., Niedner-Schateburg G. (2011) “Spin and Orbital Magnetic Moments of Free Nanoparticles” Physical Review Letters 107, 233401
  • Peredkov S., Savci A., Peters S., Neeb M., Eberhardt W, Kampschulte H., Meyer J., Tombers M., Hofferberth B., Menges F., Niedner-Schatteburg G. (2011) “X-ray absorption spectroscopy of mass-selected transition metal clusters using a cyclotron ion trap: An experimental setup for measuring XMCD spectra of free clusters” Journal of Electron Spectroscopy and Related Phenomena 184, 113


  • S. Peters, S. Peredkov, N. Ferretti, A.  Savci, M.Neeb, W. Eberhardt, Core-level photoionization spectroscopy of supported metal clusters: Cu55 on silica, J. El. Spec. 181, 140, (2010)
  • S. Peters, S. Peredkov, B. Balkaya, N. Ferretti, M. Neeb, W. Eberhardt, Evolution of metallic screening within the sub-nm range, Phys. Chem. Phys. 12, 9867, (2010)
  • S. Peters, S. Peredkov, B. Balkaya, N. Ferretti, A. Savci, A. Vollmer, M. Neeb, W. Eberhardt, Inner-shell photoionization spectroscopy on deposited metal clusters using soft x-ray synchrotron radiation: An experimental setup, Rev. Sci. Inst. 80, 125106, (2009)


  • M. Tchaplyguine, S. Peredkov, A. Rosso, I. Bradeanu, G.  Ohrwall, S.Legendre, S.L. Sorensen, N. Martensson, S. Svensson, O. Bjorneholm, Absolute core-level binding energy shifts between atom and solid: The Born-Haber cycle revisited for free nanoscale metal clusters, J. El. Spec. 166-167, 38, (2008)


  • M. Tchaplyguine, S. Peredkov, A .Rosso, J.Schulz, G. Ohrwall, M. Lundwall, T. Rander, A. Lindblad, H. Bergersen, S. Svensson, S. L. Sorensen, N. Martensson, O.Bjorneholm, Direct observation of the non-supported metal nanoparticle electron density of states by X-ray photoelectron spectroscopy, Eur. Phys. J. D 47, 295, (2007)
  • M. Tchaplyguine, A. Kivimäki, S. Peredkov, S. L.Sorensen, Localized versus delocalized excitations just above the 3d threshold in krypton clusters studied by Auger electron spectroscopy, J. Chem. Phys. 127, 124314, (2007)
  • Peredkov S., Rosso A., Ohrwall G., Martensson N., Lundwall M., Rander T., Lindblad A., Bergersen H., Svensson S., Sorensen S. L., Bjorneholm O. and Tchaplyguine M. (2007) “Size determination of free metal clusters by core-level photoemission from different initial charge states” Physical Review B (Rapid. Comm.) 76, 081402
  • Peredkov S., Tchaplyguine M., Schulz J., Sorensen S. L., Martensson N, Ohrwall G, Lundwall M., Rander T., Lindblad A., Bergersen H., Svensson S., Bjorneholm O., Rosso A. (2007) “Free nanoscale sodium clusters studied by core-level photoelectron spectroscopy” Physical Review B 75, 235407


  • M. Lundwall, R. F. Fink, M. Tchaplyguine, A. Lindblad, G. Öhrwall, H. Bergersen, S. Peredkov, T. Rander, S. Svensson, O. Björneholm, Shell-dependent core-level chemical shifts observed in free xenon clusters, J. Phys. B 39, 5225, (2006)
  • M.Lundwall, A.Lindblad, H.Bergersen, T.Rander, G.Ohrwall, M.Tchaplyguine, S.Peredkov, S.Svensson, O.Bjorneholm, Photon energy dependent intensity variations observed in Auger spectra of free argon clusters, J. Phys. B 39, 3321 (2006)
  • A. Artemiev, A. Snigirev, V.G. Kohn, I. Snigireva, N. Artemev, M. Grigoriev, S. Peredkov, L. Glikin, M. Levtonov, V. Kvardakov , A. Zabelin, A. Maevskii, X-ray parabolic lenses made from glassy carbon by means of laser, Rev.Sci.Inst. 77, 063113 (2006)
  • M. Tchaplyguine, S. Peredkov, H. Svensson, J. Schulz, G. Ohrwall, M. Lundwall, T. Rander, A. Lindblad, H. Bergersen, S. Svensson, M. Gisselbrecht, S.L. Sorensen, L. Gridneva, N. Martensson, O. Bjorneholm, Magnetron-based Source of Neutral Metal Vapours for Photoelectron Spectroscopy, Rev. Sci. Inst. 77, 33106-1-6, (2006)


  • M. Lundwall, M. Tchaplyguine, G. Ohrwall, A. Lindblad, S. Peredkov, T. Rander, S. Svensson, O. Bjorneholm, Enhanced surface sensitivity in AES relative to XPS observed in free argon clusters, Surf. Science, 594, 12, (2005)
  • Peredkov S., Kivimaki A., Sorensen S. L., Schulz J., Martensson N., Ohrwall G., Lundwall M., Rander T., Lindblad A., Bergersen H., Svensson S., Bjorneholm O. and Tchaplyguine M. (2005) “Ionic-like Energy Structure of Neutral Core-Excited States in Free Kr Clusters” Physical Review A (Rapid Communications) 72, 021201
  • A. N. Artemiev, A. Snigirev, V. Kohn, I. Snigireva, N. Artemiev, M. Grigoriev, S.Peredkov, L. Glikin, M. Levtonov, V. Kvardakov, A. Zabelin, A. Maevskiy, Planar parabolic X-ray refractive lens made of glassy carbon, NIM 543, 322, (2005)


  • G. Ohrwall, M. Tchaplyguine, M. Lundwall, R. Feifel, H. Bergersen, T. Rander, A. Lindblad, J. Schulz, S. Peredkov, S. Barth, S. Marburger, U. Hergenhahn, S. Svensson, O. Bjorneholm, Femtosecond interatomic coulombic decay in free neon clusters: Large lifetime differences between surface and bulk, Phys. Rev. Lett. 93, 173401-1, (2004)
  • Artemiev N., Hrdy J., Peredkov S., Artemev A. (2004) “Ray-tracing analysis of diffractive-refractive X-ray optics” Journal of Synchrotron Radiation 11, 157
  • A. Artemiev, A. Snigirev, V.G. Kohn, I. Snigireva, N. Artemev, S. Peredkov, A. Zabelin, A. Maevskii, Focusing of hard synchrotron radiation by refracting glassy carbon lens, Cryst.Rep. V.49, S166, (2004)


  • S. Peredkov, A.N. Artemiev, A.L. Bogdanov, X-Ray microimaging using white SR on the lithography station at the MAX-lab (in russian), Поверхность.Рентгеновские, синхротронные и нейтронные исследования, 11,11 (2003) http//www.issp.ac.ru/journal/surface/


  • Wilhelmi O., Peredkov S., Bogdanov A. L. (2002) “Concept, construction and commissioning of an alignment system for deep x-ray lithography” Microelectronic Engineering 61-2, 1107


  • N. Artemiev, J. Hrdy, S. Peredkov, A. Artemev, A. Freund, R. Tucoulo, Sagittal focusing of synchrotron radiation diffracted on the walls of a longitudinal hole drilled into a single-crystal monochromator, J. Synch. Rad., 8,1207 (2001)
  • L. Singelton, A. Schmidt, A. Bogdanov, S. Peredkov, O. Wilhelmi, A. Schneider, C. Cremers, S. Megtert, Deep X-ray lithography with SU-8 resist, 25 Sep.- 2 March, Santa Clara, CA, USA, Emerging Lithographic Technologies V, Proceedings of SPIE V. 4343, 182 (2001)
  • Bogdanov A. L., Peredkov S. (1999) “X-ray lithography station at MAX-Lab: First results” MicroEngineering 99, 183
  • A.L. Bogdanov, S. Peredkov, Use of SU-8 photoresist for very high aspect ratio lithography, MNE’99, 493 (1999)
  • Artemiev A., Bushev I., Kolyasnikov V., Kovachov G., Latish O., Martynenko V., Moryakov V., Odintsov D., Peredkov S., Rakhimbabaev T., Stankevitch V., Nikitin B., Schmidt M., Schmidt A. “Deep X-ray Lithography Beamline at Kurchatov Synchrotron Radiation Source. First Results” Nuclear Instruments & Methods in Physics Research A 405, 496
  • L.I. Ioudin, V.H. Lightenshtein, V.G. Mikhailov, V.A. Rezvov, V.I. Sklyarenko, A.N. Artemiev, S. Peredkov, T.Y. Rakhimbabaev, M. Lemonnier, S. Megtert, M. Roulliay, Synchrotron radiation parameters registration using beam crossection image detector. The first experiments, Nucl. Instum. Methods Phys. Res. A , 405 (2-3), 265 (1998)
  • A.N. Artemiev, L.I. Ioudin, V.H. Lightenshtein, V.G. Mikhailov, S.S. Peredkov, T.Y. Rakhimbabaev, V.A. Rezvov, V.I. Sklyarenko, M. Lemonnier, S. Megtert, M. Roulliay, The development of the ionization detector for measuring the main parameters of the accelerated ionizing beams, EPAC-96, Vol2, 1716 (1996)
  • Artemiev A., Peredkov S., Rakhimbabaev T., Zabelin A., Hrdy J. “Spectrometer with vertical dispersion mode for studying chemical shifts in X-ray emission lines with the use of synchrotron radiation. Preliminary experiment.” (1995) Nuclear Instruments & Methods in Physics Research A 359, 270


  • 1997 – awarded Kurchatov grant for young scientists
  • 2002 – awarded Kurchatov prize for young scientists

Group members

Lab staff

  • Nilson Bernardo Pereira

X-ray Spectroscopy Instrumentation

The PINK project is devoted to establishing a high-resolution (∆E=0.2-0.7 eV) X-ray emission spectroscopy (XES) setup at the BESSY II synchrotron ring in Berlin, opening up “two-color” and time-resolved studies of catalytic systems at an unprecedented level. From natural systems to manmade homogenous and heterogeneous catalysts, transition metals are often employed to effect challenging chemical transformations. Knowledge of the changes in the transition metal electronic structure and ligation environment are essential for any detailed mechanistic understanding, which forms the basis for rational catalysis design.

Our understanding of the electronic structure of matter is largely based on studies of the interaction of matter with electromagnetic radiation or with particles and on the concurrent development of quantum-mechanical models. To this end, XES is a powerful element selective technique, which provides local structural information near the selected atomic species [1]. XES measurements and analysis of x-ray emission lines can reveal the ligand identity, the ligand ionization potential and the metal-ligand distance. XES can also help to identify oxidation states of the extent of substrate activation [2,3,4,5]. In contrast to photoelectron spectroscopy (PES), XES is a photon-in-photon-out technique, thus the probing depth is roughly two orders of magnitude larger than in PES. XES is a "photon-hungry" technique and synchrotron radiation is the optimal source of x-ray radiation for studies of dilute systems.

The PINK setup is designed to operate in the tender x-rays regime with energies ranging from 2 to 10 keV (Fig. 1). This unique energy range provides access to both non-resonant and resonant XES studies of transition metals ranging from Ti to Cu (Kα, Kβ lines) and Zr to Ag (Lα, Lβ lines), as well as lighter elements including P, S, Cl, K, Ca (Kα, Kβ lines). The optical system of the beamline has two modes of operation: a pink mode and a monochromatic mode. A high intensity undulator source combined with a multilayer monochromator delivers the high photon flux at the sample allowing non-resonant XES measurement of very dilute substances (Fig. 2).

Resonant XES and XANES measurements are available with optional use of a double-crystal monochromator (DCM). The experimental setup shown in Fig. 3 is equipped with two in-house designed wavelength-dispersive von Hamos crystal spectrometers for analysis of fluorescent x-ray radiation.

The first spectrometer is built to run at atmospheric pressure and covers 5-10 keV energy range (see Fig. 4). Using of a helium flight path the absorption of fluorescent photons can be reduced. The second spectrometer is placed inside a vacuum chamber and allows XES measurements at lower energies down to 2 keV. Many heterogeneous inorganic catalysts, as well as biological nitrogen reduction and water oxidation reactions, involve bimetallic clusters. Both spectrometers can be run independently, thus we will be able to record non-resonant XES spectra for two elements simultaneously, so called “two-color” experiments [6].

Taking advantage of a wavelength-dispersive analyzer to record the entire spectrum simultaneously and using fast x-ray position sensitive Mythen (1kHz) and Jungfrau (500Hz) detectors, we will be able to provide very attractive time resolved (0.1 -10 s) XES measurements [7].

In collaboration with the HZB sample environment group, we designed a cryo-cooled sample chamber to maintain the samples at 10 K temperature within a He atmosphere, in order to reduce radiation damages and avoid decomposition (Fig. 5).

The PINK setup incorporates a 4 meters long high-vacuum section, 3 area detectors, a cryo-cooled sample environment chamber, more than 30 stepping motors and piezodrives, beam diagnostic elements, other electronics and vacuum equipment. Our group develops control and acquisition software for the experimental station on the base of EPICS control system [8] and Python programming language. We also will provide software for preliminary data analysis.


[1] U. Bergmann and P. Glatzel, "X-ray emision spectroscopy" (2009) Photosynth. Res., 255

[2] M. A. Beckwith, M. Roemelt, M.-N. Collomb, C. DuBoc, T.-C. Weng U. Bergmann, P. Glatzel, F. Nesse and S. DeBeer, "Manganese Kb x-ray emission spectroscopy as a probe of metal-ligand interactions" (2011) Inorg. Chem, 50, 8397

[3] C. J. Pollock, K. Grubel, P. H. Holland, S. DeBeer, "Experimentally quantifying small-molecule bond activation using valence-to-core x-ray emission spectroscopy" (2013) J. of the Am. Chem. Soc., 135, 32, 11803

[4] C. Pollock and S. DeBeer, “Insights into the Geometric and Electronic Structure of Transition Metal Centers from Valence-to-Core X-ray Emission Spectroscopy” (2015) Acc. Chem. Res., 48 (11), 2967

[5] N. Lee, T. Petrenko, U. Bergmann, et al “Probing Valence Orbital Composition with Iron K beta X-ray Emission Spectroscopy” (2010) J. Am. Chem. Soc., 132 (28), 9715

[6] S. Gul, J. W. Desmond Ng. R. Alonso-Mori, J. Kern, et al., “Simultaneous detection of electronic structure changes from two elements of a bifunctional catalyst using wavelength-dispersive X-ray emission spectroscopy and in situ electrochemistry” (2015) Phys. Chem. Chem. Phys, 17, 8901

[7] J. Szlachetko, M. Nachtegaal, E. de Boni, M. Willimann, O. Safonova, J. Sa, G. Smolentsev, M. Szlachetko, J. A. van Bokhoven, J.-Cl. Dousse, J. Hoszowska, Y. Kayser, P. Jagodzinski, A. Bergamaschi, B. Schmitt, C. David, and A. Lücke, "A von Hamos x-ray spectrometer based on a segmented-type diffraction crystal for single-shot x-ray emission spectroscopy and time-resolved resonant inelastic x-ray scattering studies" (2012) Rev. Sci. Inst., 83, 103105

[8] EPICS control system: www.aps.anl.gov/epics/