Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy
Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy

MBI Staff Member – Personal info

Dr. Wolfgang-Dietrich Engel

wolfgang.engel(at)mbi-berlin.de
+49 30 6392 1337

B1: Electron and Spin Dynamics
Building B, 2.12

Position

  • Project Coordinator: 4.3 "Nanoscaled Optics and Samples",
  • Member of Project: 3.3 "Transient Structures and lmaging with X-rays"

Research

The Laboratory for Nanoscale Samples and Optics supports several experiments in different scientific projects of the MBI. We develop and produce thin-film sample systems on various substrates with the focus on magnetic multilayers, alloys and metal foils using magnetron sputtering and thermal evaporation. The close integration of deposition, structuring and characterization of these systems with experiments promotes fast feedback on sample performance and rapid development cycles. We collaborate closely with several MBI projects as well as with external cooperation partners to provide custom sample-related services.

To enable new experimental techniques as for example Spin Hall Effect measurements and skyrmion nucleation via high current density, a UV-lithography system is used to create masks, which enables necessary structuring and lift-off processes. Topographic and magnetic characterization is carried out via atomic and magnetic force microscopy (AFM/MFM), electron microscopy (SEM, EDX), X-ray reflectivity and diffraction, Kerr-magnetometry and Kerr-microscopy.

In close cooperation with the central facility for electron microscopy (ZELMI) at the TU Berlin the 3D patterning on a few-micrometer and nanometer scale via electron beam lithography (EBL) and focused ion beam milling (FIB) is carried out.

MBI Publications

  1. From stripes to bubbles: Deterministic transformation of magnetic domain patterns in Co/Pt multilayers induced by laser helicity

    N. Novakovic-Marinkovic, M.-A. Mawass, O. Volkov, P. Makushko, W. D. Engel, D. Makarov, F. Kronast

     Physical Review B 102 (2020) 174412/1-8
  2. Optical inter-site spin transfer probed by energy and spin-resolved transient absorption spectroscopy

    F. Willems, C. von Korff Schmising, C. Strüber, D. Schick, W. D. Engel, J. K. Dewhurst, P. Elliott, S. Sharma, S. Eisebitt

     Nature Communications 11 (2020) 871/1-7
  3. Element specificity of transient extreme ultra-violet magnetic dichroism

    J. K. Dewhurst, F. Willems, P. Elliott, Q. Z. Li, von Korff Schmising, C., C. Strüber, D. W. Engel, S. Eisebitt, S. Sharma

     Physical Review Letters 124 (2020) 077203/1-6
  4. Origin of strong-field-induced low-order harmonic generation in amorphous quartz

    P. Jürgens, B. Liewehr, B. Kruse, C. Peltz, D. Engel, A. Husakou, T. Witting, M. Y. Ivanov, M. J. J. Vrakking, T. Fennel, A. Mermillod-Blondin

     Nature Physics online (2020) 1-11
  5. Magneto-optical functions at the 3p resonances of Fe, Co, and Ni: Ab-initio description and experiment

    F. Willems, S. Sharma, C. von Korff Schmising, J. K. Dewhurst, L. Salemi, D. Schick, P. Hessing, C. Strüber, W. D. Engel, S. Eisebitt

     Physical Review Letters 122 (2019) 217202/1-6
  6. Fast current-driven domain walls and small skyrmions in a compensated ferrimagnet

    L. Caretta, M. Mann, F. Büttner, K. Ueda, B. Pfau, C. M. Günther, P. Hessing, A. Churikova, C. Klose, M. Schneider, D. Engel, C. Marcus, D. Bono, K. Bagschik, S. Eisebitt, G. S. D. Beach

     Nature Nanotechnology 13 (2018) 1154–1160
  7. Three-dimensional characterization of Co/Pd multilayer thin films using resonant soft x-ray scattering

    S. Flewett, D. Mishra, T. J. A. Mori, C. M. Günther, J. C. Denardin, S. Oyarzún, S. Michea, D. Engel, M. Fohler, T. C. R. Rocha, A. Ovalle F., L. T. Núñez A., B. Pfau, J. Escrig, S. Eisebitt

     Physical Review B 95 (2017) 094430/1-11
  8. Field-free deterministic ultrafast creation of magnetic skyrmions by spin–orbit torques

    F. Büttner, I. Lemesh, M. Schneider, B. Pfau, C. M. Günther, P. Hessing, J. Geilhufe, L. Caretta, D. Engel, B. Krüger, J. Viefhaus, S. Eisebitt, G. S. D. Beach

     Nature Nanotechnology 12 (2017) 1040–1044
  9. CXS: Coherent X-ray scattering at the UE49-SGM at BESSY II

    D. Engel, D. Mishra, S. Eisebitt

     Journal of large-scale research facilities JLSRF A56 (2016) 1-4