TU BRAUNSCHWEIG

Dr. Markus Etzkorn


Address:

Institute of Applied Physics
Technical University Braunschweig
Mendelssohnstraße 2
38106 Braunschweig

Room 255

Tel.: 0531 391 8531

E-Mail: m.etzkorn(at)tu-bs.de

       Academic staff in the department "Nanoscopic Systems".

Research interests:

  • Magnetism and magnetic order down to the atomic scale
  • Dynamics and relaxation processes
  • atomic Josephsoncontacts
  • Scanning Probe Microscopy methodes and their further improvement

Publications

  • B. Jäck, J. Senkpiel, M. Etzkorn, J. Ankerhold, C.R. Ast, and K. Kern

          Quantum Brownian motion at strong dissipation probed by superconducting tunnel junctions

          Physical Review Letters 119, 147702 (2017).

 

  • Q. Dubout, F. Calleja, G. Sclauzero, M. Etzkorn, A. Lehnert, L. Claude, M. Papagno, F.D. Natterer, F. Patthey, S. Rusponi, A. Pasquarello, and H. Brune

          Giant Apparent Strain in Scanning Probe Images of Corrugated sp2-Hybridized Monolayers

          New Journal of Physics 18, 103027 (2016).

 

  • C.R. Ast, B. Jäck, J. Senkpiel, M. Eltschka, M. Etzkorn, J. Ankerhold, and K. Kern

          Sensing the Quantum Limit in Scanning Tunneling Spectroscopy

          Nature Communicatiocs 7,13009 (2016).

 

  • B. Jäck, M. Eltschka, M. Assig, M. Etzkorn, C.R. Ast, and K. Kern

          Critical Josephson current in the Dynamical Coulomb Blockade Regime

          Physical Review B 93, 020504(R) (2016).

 

  • M. Etzkorn, C.F. Hirjibehedin, A. Lehnert, S. Ouazi, S. Rusponi, S. Stepanow, P. Gambardella, C. Tieg, P. Thakur, A.I. Lichtenstein, A.B. Shick, S. Loth, A.J. Heinrich, and H. Brune

          Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on Cu2N/Cu(100)

          Physical Review B 92, 184406 (2015).

 

  • M. Eltschka, B. Jäck, M. Assig, O.V. Kondrashov, M.A. Skvortsov, M. Etzkorn, C.R. Ast, and K. Kern

          Superconducting scanning tunneling microscopy tips in a magnetic field: Geometry-controlled order of the phase transition

          Applied Physics Letters 107, 122601 (2015).

 

  • S. Vijayaraghavan, W. Auwärter, D. Ecija, K. Seufert, S. Rusponi, T. Houwaart, P. Sautet, M.-L. Bocquet, P. Thakur, S. Stepanow, U. Schlickum, M. Etzkorn, H. Brune, and J.V. Barth

          Restoring the Co Magnetic Moments at Interfacial Co-Porphyrin Arrays by Site-Selective uptake of Irons

          ACS Nano 9, 3605 (2015).

 

  • Q. Dubout, F. Donati, C. Wäckerlin, F. Calleja, M. Etzkorn, A. Lehnert, L. Claude, P.Gambardella, and H. Brune

          Controlling the spin of Co atoms on Pt(111) by hydrogen adsorption

          Physical Review Letters 114, 106807 (2015).

 

  • B. Jäck, M. Eltschka, M. Assig, A. Hardock, M. Etzkorn, C.R. Ast, and K. Kern

          A nanoscale gigahertz source realized with Josephson scanning tunneling microscopy

          Applied Physics Letters 106, 013109 (2015).

  • M. Eltschka, B. Jäck, M. Assig, O.V. Kondrashov, M.A. Skvortsov, M. Etzkorn, C.R. Ast, and K. Kern

          Probing Absolute Spin Polarization at the Nanoscale

          Nano Letters 14, 7171 (2014).

 

  • Christoph Grosse, Alexander Kabakchiev, Theresa Lutz, Romain Froidevaux,  Frank Schramm, Mario Ruben, Markus Etzkorn, Uta Schlickum, Klaus Kuhnke, and Klaus Kern

          Dynamic Control of Plasmon Generation by an Individual Quantum System

          Nano Letters 14, 5693 (2014).

 

  • Christoph Grosse, Markus Etzkorn, Klaus Kuhnke, Sebastian Loth, and Klaus Kern

          Quantitative mapping of fast voltage pulses in tunnel junctions by plasmonic luminescence

          Applied Physics Letters 103, 183108 (2013).

 

  • A. Crepaldi, S. Pons, E. Frantzeskakis, F. Calleja, M. Etzkorn, A.P. Seitsonen, K. Kern, H. Brune, and M. Grioni

          Combined ARPES and STM study of Pb/Au(111) Moiré structure: One overlayer, two symmetries

          Physical Review B 87, 115138 (2013).

 

  • Maximilian Assig, Markus Etzkorn, Axel Enders, Wolfgang Stiepany, Christian R. Ast, and Klaus Kern

          A 10 mK scanning tunneling microscope operating in ultra high vacuum and high magnetic fields

          Review of Scientific Instruments 84, 033903 (2013).

  • Marco Papagno, Stefano Rusponi, Polina Makarovna Sheverdyaeva, Sergio Vlaic, Markus Etzkorn, Daniela Pacilé, Paolo Moras, Carlo Carbone, and Harald Brune

          Large Band Gap Opening between Graphene Dirac Cones Induced by Na Adsorption onto an Ir Superlattice

          ACS Nano 6, 199 (2012).

  • S. Rusponi, M. Papagno, P. Moras, S. Vlaic, M. Etzkorn, P. M. Sheverdyaeva, D. Pacilé, H. Brune, and C. Carbone

          Highly Anisotropic Dirac Cones in Epitaxial Graphene Modulated by an Island Superlattice

          Physical Review Letters 105, 246803 (2010).

  • S. Loth, M. Etzkorn, C.P. Lutz, D. M. Eigler, and A.J. Heinrich

          Measurement of Fast Electron Spin Relaxation Times with Atomic Resolution

          Science 329, 1628 (2010).

 
  • A. Lehnert , S. Dennler, P. Blonski, S. Rusponi, M. Etzkorn, G. Moulas, P. Bencok, P. Gambardella, H. Brune, and J. Hafner

          Magnetic anisotropy of Fe and Co ultrathin films deposited on Rh(111) and Pt(111) substrates: An experimental and first principles investigation

          Physical Review B 82, 094409 (2010).

 
  • P. Blonski, A. Lehnert, S. Dennler, S. Rusponi, M. Etzkorn, G. Moulas, P. Bencok, P. Gambardella, H. Brune, and J. Hafner

          Magnetocrystalline anisotropy energy of Co and Fe adatoms on the (111) surfaces of Pd and Rh

          Physical Review B 81, 104426 (2010).

 
  • A. Lehnert, S. Rusponi, M. Etzkorn, S. Ouazi, P. Thakur, and H. Brune

          Magnetic anisotropy of Fe and Co adatoms and Fe clusters magnetically decoupled from Ni3Al(111) by an alumina bilayer

          Physical Review B 81, 104430 (2010).

 
  • G. Moulas, A. Lehnert, S. Rusponi, J. Zabloudil, C. Etz, S. Ouazi, M. Etzkorn, P. Bencok, P. Gambardella, P. Weinberger, and H. Brune

          High magnetic moments and anisotropies for FexCo1-x monolayers on Pt(111)

          Physical Review B 78, 214424 (2008).

 

  • W.X. Tang, Y. Zhang, I Tudosa, J. Prokop, M. Etzkorn, and J. Kirschner

         Large wave vector apin waves and dispersion in two monolayer Fe on W(110)

         Physical Review Letters 99, 87202 (2007).

 

  • M. Etzkorn, P.S. Anil Kumar, and J. Kirschner

         High-energy surface spin-waves studied by Spin-polarized Electron Energy Loss Spectroscopy

         Book chapter in The Handbook of Magnetism and Advanced Magnetic Materials, edited by H. Kronmüller and S. Parkin, John Wiley & Sons Ldt; Chichester.

 

  • H. Ibach, M. Etzkorn, and J. Kirschner

          Electron spectrometers for inelastic scattering from surface magnons

          Surface and Interface Analysis 38, 1615 (2006).

 

  • M. Etzkorn, P.S. Anil Kumar, W. Tang, Y. Zhang, and J. Kirschner

          High wave vector spin waves in ultrathin Co-films on W(110)

          Physical Review B 72, 184420 (2005).

 

  • M. Etzkorn

          Spin waves with high energy and momentum in ultra-thin Co-films studied by spin-polarized electron energy loss spectroscopy

          Dissertation, Max-Planck Institut für Mikrostrukturphysik, Halle (2005)

          http://sundoc.bibliothek.uni-halle.de/diss-online/05/05H103/t1.pdf

 

  • R. Vollmer, M. Etzkorn, P.S. Anil Kumar, H. Ibach, and J. Kirschner

          Spin wave excitation in ultrathin Co and Fe films on Cu(001) by spin polarized electron energy loss spectroscopy

          Journal of Applied Physics 95, 7435 (2004). 

 

  • R. Vollmer, M. Etzkorn, P. S. Anil Kumar, H. Ibach, and J. Kirschner

          Spin wave excitations observed by spin-polarized electron energy loss spectroscopy: A new method for the investigation of surface- and thin film spin waves on the atomic scale

          Thin Solid Films 464-465, 42 (2004).

 

  • M. Etzkorn, P. S. Anil Kumar, R. Vollmer, H. Ibach, and J. Kirschner

          Spin waves in ultrathin Co-films measured by spin polarized electron energy loss spectroscopy

          Surface Science 566-568, 241 (2004).

 

  • R. Vollmer, M. Etzkorn, P. S. Anil Kumar, H. Ibach, and J. Kirschner

          Spin-polarized electron energy loss spectroscopy: a method to measure magnon energies

          Journal of Magnetism and Magnetic Materials 272-276, 2126 (2004).

 

  • R. Vollmer, M. Etzkorn, P. S. Anil Kumar, H. Ibach, and J. Kirschner

          Spin-polarized electron energy loss spectroscopy of high energy, large wave vector spin waves in ultrathin fcc Co films on Cu(001)

          Physical Review Letters 91, 147201 (2003).

 

  • H. Ibach, D. Bruchmann, R. Vollmer, M. Etzkorn, P. S. Anil Kumar, H. Ibach, and J. Kirschner

          A novel spectrometer for spin-polarized electron energy-loss spectroscopy

          Review of Scientific Instruments 74, 4089 (2003).

 

  • F. Radu, M. Etzkorn, R. Siebrecht, T. Schmitte, A. Schreyer, K. Westerholt, and H. Zabel

          Interfacial domain formation during magnetization reversal in exchanged-biased CoO/Co bilayers

          Physical Review B 67, 134409 (2003).

 

  • F. Radu, M. Etzkorn, T. Schmitte, R. Siebrecht, A. Schreyer, K. Westerholt, and H. Zabel

          Asymmetric magnetization reversal on exchange biased Co/CoO bilayers

          Journal of Magnetism and Magnetic Materials 240, 251 (2002).

 

  • F. Radu, M. Etzkorn, V. Leiner, T. Schmitte, A. Schreyer, K. Westerholt, and H. Zabel

          Polarized neutron reflectrometry study on Co/CoO exchange biased multilayers

          Applied Physics A 74, S1570 (2002).

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