Dynamic processes

The group research focus on different time dependent processes in condenced matter, comparing different aspects in the nanosecond – femtosecond time range, in order to correlate structural and physical properties like ferromagnetism, electric properties…

Research activities

Spin precession

Magnetoelectric couplage

Ultra-fast magnetization dynamics

Team members :

Researcher, Surfaces and Interfaces (DSI)Nicolas.Bergeard@ipcms.unistra.fr
Phone: +33(0)3 88 10 71 04Office: 1036
See personal page
Senior Researcher, Surfaces and Interfaces (DSI)Christine.Boeglin@ipcms.unistra.fr
Phone: +33(0)3 88 10 70 28, +33(0)3 88 10 70 35Office: 1041
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Researcher, Surfaces and Interfaces (DSI)Salia.Cherifi@ipcms.unistra.fr
Phone: +33(0)3 88 10 72 18Office: 1043
Postdoctoral fellow, Surfaces and Interfaces (DSI)boris.croes@ipcms.unistra.fr
Phone: +33(0)3 88 10 70 98Office: 1026
PhD student, Surfaces and Interfaces (DSI)deeksha.gupta@ipcms.unistra.fr
Phone: +33(0)3 88 10 70 78Office: 1031
PhD student, Surfaces and Interfaces (DSI)loan.hajdari-manigault@ipcms.unistra.fr
Phone: +33(0)3 88 10 70 98Office: 1026
Postdoctoral fellow, Surfaces and Interfaces (DSI)matthias.riepp@ipcms.unistra.fr
Phone: +33(0)3 88 10 70 78Office: 1031
Team photo here

Recent publications :

[1]
U. Acevedo-Salas, B. Croes, Y. Zhang, O. Crégut, K.D. Dorkenoo, B. Kirbus, E. Singh, H. Beccard, M. Rusing, L.M. Eng, R. Hertel, E.A. Eliseev, A.N. Morozovska, S. Cherifi-Hertel, Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls., Nano Letters 23 (2023) 795–803. https://doi.org/10.1021/acs.nanolett.2c03579.
[1]
B. Croes, F. Cheynis, M. Texier, P. Mueller, S. Curiotto, F. Leroy, Thermomechanic behavior of epitaxial GeTe ferroelectric films, Journal of Applied Physics 134 (2023) 204103. https://doi.org/10.1063/5.0173718.
[1]
T. Ferté, M. Beens, G. Malinowski, K. Holldack, R. Abrudan, F. Radu, T. Kachel, M. Hehn, C. Boeglin, B. Koopmans, N. Bergeard, Laser induced ultrafast Gd 4f spin dynamics in Co100-xGdx alloys by means of time-resolved XMCD, The European Physical Journal Special Topics early access (2023). https://doi.org/10.1140/epjs/s11734-023-00812-w.
[1]
W. Jo, S. Stern, F. Westermeier, R. Rysov, M. Riepp, J. Schmehr, J. Lange, J. Becker, M. Sprung, T. Laurus, H. Graafsma, I. Lokteva, G. Gruebel, W. Roseker, Single and multi-pulse based X-ray photon correlation spectroscopy, Optics Express 31 (2023) 3315–3324. https://doi.org/10.1364/OE.477774.
[1]
J. Kurian, A. Joseph, S. Cherifi-Hertel, C. Fowley, G. Hlawacek, P. Dunne, M. Romeo, G. Atcheson, J.M.D. Coey, B. Doudin, Deterministic multi-level spin orbit torque switching using focused He+ ion beam irradiation, Applied Physics Letters 122 (2023) 032402. https://doi.org/10.1063/5.0131188.
[1]
L. Le Guyader, A. Eschenlohr, M. Beye, W. Schlotter, F. Doring, C. Carinan, D. Hickin, N. Agarwal, C. Boeglin, U. Bovensiepen, J. Buck, R. Carley, A. Castoldi, A. D’Elia, J.T. Delitz, W. Ehsan, R. Engel, F. Erdinger, H. Fangohr, P. Fischer, C. Fiorini, A. Fohlisch, L. Gelisio, M. Gensch, N. Gerasimova, R. Gort, K. Hansen, S. Hauf, M. Izquierdo, E. Jal, E. Kamil, S. Karabekyan, T. Kluyver, T. Laarmann, T. Lojewski, D. Lomidze, S. Maffessanti, T. Mamyrbayev, A. Marcelli, L. Mercadier, G. Mercurio, P.S. Miedema, K. Ollefs, K. Rossnagel, B. Rosner, N. Rothenbach, A. Samartsev, J. Schlappa, K. Setoodehnia, G. Sorin Chiuzbaian, L. Spieker, C. Stamm, F. Stellato, S. Techert, M. Teichmann, M. Turcato, B. Van Kuiken, H. Wende, A. Yaroslavtsev, J. Zhu, S. Molodtsov, C. David, M. Porro, A. Scherz, Photon-shot-noise-limited transient absorption soft X-ray spectroscopy at the European XFEL., Journal of Synchrotron Radiation 30 (2023) 284–300. https://doi.org/10.1107/S1600577523000619.
[1]
T. Lojewski, M.F. Elhanoty, L. Le Guyader, O. Granaes, N. Agarwal, C. Boeglin, R. Carley, A. Castoldi, C. David, C. Deiter, F. Doering, R. Engel, F. Erdinger, H. Fangohr, C. Fiorini, P. Fischer, N. Gerasimova, R. Gort, F. deGroot, K. Hansen, S. Hauf, D. Hickin, M. Izquierdo, B.E. Van Kuiken, Y. Kvashnin, C.-H. Lambert, D. Lomidze, S. Maffessanti, L. Mercadier, G. Mercurio, P.S. Miedema, K. Ollefs, M. Pace, M. Porro, J. Rezvani, B. Roesner, N. Rothenbach, A. Samartsev, A. Scherz, J. Schlappa, C. Stamm, M. Teichmann, P. Thunstrom, M. Turcato, A. Yaroslavtsev, J. Zhu, M. Beye, H. Wende, U. Bovensiepen, O. Eriksson, A. Eschenlohr, The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni, Materials Research Letters 11 (2023) 655–661. https://doi.org/10.1080/21663831.2023.2210606.
[1]
F. Mouillard, T. Ferté, E. Voirin, S. Méry, P. Masson, A. Carradò, Use of a Photocleavable Initiator to Characterize Polymer Chains Grafted onto a Metal Plate with the Grafting-from Method., Polymers 15 (2023) 1265. https://doi.org/10.3390/polym15051265.
[1]
B. Chowrira, L. Kandpal, M. Lamblin, F. Ngassam, C.-A. Kouakou, T. Zafar, D. Mertz, B. Vileno, C. Kieber, G. Versini, B. Gobaut, L. Joly, T. Ferté, E. Monteblanco, A. Bahouka, R. Bernard, S. Mohapatra, H. Prima Garcia, S. Elidrissi, M. Gavara, E. Sternitzky, V. Da Costa, M. Hehn, F. Montaigne, F. Choueikani, P. Ohresser, D. Lacour, W. Weber, S. Boukari, M. Alouani, M. Bowen, Quantum Advantage in a Molecular Spintronic Engine that Harvests Thermal Fluctuation Energy., Advanced Materials Early access (2022) e2206688–e2206688. https://doi.org/10.1002/adma.202206688.
[1]
B. Croes, I. Gaponenko, C. Voulot, O. Grégut, K.D. Dorkenoo, F. Cheynis, S. Curiotto, P. Müller, F. Leroy, K. Cordero-Edwards, P. Paruch, S. Cherifi-Hertel, Automatic Ferroelectric Domain Pattern Recognition Based on the Analysis of Localized Nonlinear Optical Responses Assisted by Machine Learning, Advanced Physics Research n/a (2022) 2200037. https://doi.org/https://doi.org/10.1002/apxr.202200037.
[1]
I. Gaponenko, S. Cherifi-Hertel, U. Acevedo-Salas, N. Bassiri-Gharb, P. Paruch, Correlative imaging of ferroelectric domain walls, Scientific Reports 12 (2022) 165. https://doi.org/10.1038/s41598-021-04166-y.
[1]
N.Z. Hagström, M. Schneider, N. Kerber, A. Yaroslavtsev, E. Burgos Parra, M. Beg, M. Lang, C.M. Gunther, B. Seng, F. Kammerbauer, H. Popescu, M. Pancaldi, K. Neeraj, D. Polley, R. Jangid, S.B. Hrkac, S.K.K. Patel, S. Ovcharenko, D. Turenne, D. Ksenzov, C. Boeglin, M. Baidakova, C. von Korff Schmising, M. Borchert, B. Vodungbo, K. Chen, C. Luo, F. Radu, L. Muller, M. Martinez Florez, A. Philippi-Kobs, M. Riepp, W. Roseker, G. Grubel, R. Carley, J. Schlappa, B.E. Van Kuiken, R. Gort, L. Mercadier, N. Agarwal, L. Le Guyader, G. Mercurio, M. Teichmann, J.T. Delitz, A. Reich, C. Broers, D. Hickin, C. Deiter, J. Moore, D. Rompotis, J. Wang, D. Kane, S. Venkatesan, J. Meier, F. Pallas, T. Jezynski, M. Lederer, D. Boukhelef, J. Szuba, K. Wrona, S. Hauf, J. Zhu, M. Bergemann, E. Kamil, T. Kluyver, R. Rosca, M. Spirzewski, M. Kuster, M. Turcato, D. Lomidze, A. Samartsev, J. Engelke, M. Porro, S. Maffessanti, K. Hansen, F. Erdinger, P. Fischer, C. Fiorini, A. Castoldi, M. Manghisoni, C.B. Wunderer, E.E. Fullerton, O.G. Shpyrko, C. Gutt, C. Sanchez-Hanke, H.A. Durr, E. Iacocca, H.T. Nembach, M.W. Keller, J.M. Shaw, T.J. Silva, R. Kukreja, H. Fangohr, S. Eisebitt, M. Klaui, N. Jaouen, A. Scherz, S. Bonetti, E. Jal, Megahertz-rate ultrafast X-ray scattering and holographic imaging at the European XFEL., Journal of Synchrotron Radiation 29 (2022) 1454–1464. https://doi.org/10.1107/S1600577522008414.
[1]
A. Lipatov, P. Chaudhary, Z. Guan, H. Lu, G. Li, O. Crégut, K.D. Dorkenoo, R. Proksch, S. Cherifi-Hertel, D.-F. Shao, E.Y. Tsymbal, J. Iniguez, A. Sinitskii, A. Gruverman, Direct observation of ferroelectricity in two-dimensional MoS2, NPJ 2D Materials and Applications 6 (2022) 18. https://doi.org/10.1038/s41699-022-00298-5.
[1]
S. Mohapatra, S. Cherifi-Hertel, S.K. Kuppusamy, G. Schmerber, J. Arabski, B. Gobaut, W. Weber, M. Bowen, V. Da Costa, S. Boukari, Organic ferroelectric croconic acid: a concise survey from bulk single crystals to thin films, Journal of Materials Chemistry C 10 (2022) 8142–8167. https://doi.org/10.1039/D1TC05310H.
[1]
A.N. Morozovska, E.A. Eliseev, S. Cherifi-Hertel, D.R. Evans, R. Hertel, Electric field control of labyrinth domain structures in core-shell ferroelectric nanoparticles, Physical Review B 106 (2022) 144104. https://doi.org/10.1103/PhysRevB.106.144104.
[1]
C. Weymann, S. Cherifi-Hertel, C. Lichtensteiger, I. Gaponenko, K.D. Dorkenoo, A.B. Naden, P. Paruch, Non-Ising domain walls in $c$-phase ferroelectric lead titanate thin films, Physical Review B 106 (2022) L241404. https://doi.org/10.1103/PhysRevB.106.L241404.
[1]
S. Cherifi-Hertel, C. Voulot, U. Acevedo-Salas, Y. Zhang, O. Crégut, K.D. Dorkenoo, R. Hertel, Shedding light on non-Ising polar domain walls: Insight from second harmonic generation microscopy and polarimetry analysis, Journal of Applied Physics 129 (2021) 081101. https://doi.org/10.1063/5.0037286.
[1]
B. Croes, F. Cheynis, Y. Zhang, C. Voulot, K.D. Dorkenoo, S. Cherifi-Hertel, C. Mocuta, M. Texier, T. Cornelius, O. Thomas, M.-I. Richard, P. Müller, S. Curiotto, F. Leroy, Ferroelectric nanodomains in epitaxial GeTe thin films, Physical Review Materials 5 (2021) 124415. https://doi.org/10.1103/PhysRevMaterials.5.124415.
[1]
T. Ferté, G. Malinowski, E. Terrier, V. Halté, L.L. Guyader, K. Holldack, M. Hehn, C. Boeglin, N. Bergeard, Laser induced ultrafast 3d and 4f spin dynamics in CoDy ferrimagnetic alloys as a function of temperature, Journal of Magnetism and Magnetic Materials 530 (2021) 167883. https://doi.org/10.1016/j.jmmm.2021.167883.
[1]
A.N. Morozovska, R. Hertel, S. Cherifi-Hertel, V.Yu. Reshetnyak, E.A. Eliseev, D.R. Evans, Chiral polarization textures induced by the flexoelectric effect in ferroelectric nanocylinders, Physical Review B 104 (2021) 054118. https://doi.org/10.1103/PhysRevB.104.054118.
[1]
B. Negulescu, J. Wolfman, A. Ruyter, C. Autret-Lambert, S. Cherifi-Hertel, Controlling the magnetoelectric coupling in Ni/BiFe0.95Mn0.05O3 with a dielectric spacer, Journal of Magnetism and Magnetic Materials 526 (2021) 167689. https://doi.org/10.1016/j.jmmm.2020.167689.
[1]
B. Seng, D. Schoenke, J. Yeste, R.M. Reeve, N. Kerber, D. Lacour, J.-L. Bello, N. Bergeard, F. Kammerbauer, M. Bhukta, T. Ferté, C. Boeglin, F. Radu, R. Abrudan, T. Kachel, S. Mangin, M. Hehn, M. Klaeui, Direct Imaging of Chiral Domain Walls and Neel-Type Skyrmionium in Ferrimagnetic Alloys, Advanced Functional Materials (2021) 2102307. https://doi.org/10.1002/adfm.202102307.
[1]
Y. Zhang, S. Cherifi-Hertel, Focusing characteristics of polarized second-harmonic emission at non-Ising polar domain walls, Optical Materials Express 11 (2021) 3736–3754. https://doi.org/10.1364/OME.442161.
[1]
N. Bergeard, M. Hehn, K. Carva, P. Balaz, S. Mangin, G. Malinowski, Tailoring femtosecond hot-electron pulses for ultrafast spin manipulation, Applied Physics Letters 117 (2020) 222408. https://doi.org/10.1063/5.0018502.
[1]
A. Haussmann, L.M. Eng, S. Cherifi-Hertel, Three-Dimensional Optical Analysis of Ferroelectric, in: Domain Walls: From Fundamental Properties to Nanotechnology Concepts, Oxford University Press, Great Clarendon Street | Oxford, 2020: p. Chap. 7. https://global.oup.com/academic/product/domain-walls-9780198862499?cc=no&lang=en&.
[1]
V. López-Flores, M.-A. Mawass, J. Herrero-Albillos, A.A. Uenal, S. Valencia, F. Kronast, C. Boeglin, A local view of the laser induced magnetic domain dynamics in CoPd stripe domains at the picosecond time scale, Journal of Physics: Condensed Matter 32 (2020) 465801. https://doi.org/10.1088/1361-648x/aba1ac.
[1]
R. Arras, S. Cherifi-Hertel, Polarization Control of the Interface Ferromagnetic to Antiferromagnetic Phase Transition in Co/Pb(Zr,Ti)O-3, ACS Applied Materials & Interfaces 11 (2019) 34399–34407. https://doi.org/10.1021/acsami.9b08906.
[1]
T. Ferté, N. Bergeard, G. Malinowski, E. Terrier, L.L. Guyader, K. Holldack, M. Hehn, C. Boeglin, Ultrafast demagnetization in buried Co80Dy20 as fingerprint of hot-electron transport, Journal of Magnetism and Magnetic Materials 485 (2019) 320–324. https://doi.org/10.1016/j.jmmm.2019.04.068.
[1]
F. Ngassam, E. Urbain, L. Joly, S. Boukari, J. Arabski, F. Bertran, P. Le Fevre, G. Garreau, P. Wetzel, M. Alouani, M. Bowen, W. Weber, Fluorinated Phthalocyanine Molecules on Ferromagnetic Cobalt: A Highly Polarized Spinterface, Journal of Physical Chemistry C 123 (2019) 26475–26480. https://doi.org/10.1021/acs.jpcc.9b09150.
[1]
F. Schleicher, B. Taudul, U. Halisdemir, K. Katcko, E. Monteblanco, D. Lacour, S. Boukari, F. Montaigne, E. Urbain, L.M. Kandpal, J. Arabski, W. Weber, E. Beaurepaire, M. Hehn, M. Alouani, M. Bowen, Consolidated picture of tunnelling spintronics across oxygen vacancy states in MgO, Journal of Physics D-Applied Physics 52 (2019) 305302. https://doi.org/10.1088/1361-6463/ab1f4d.

Spin precession

Magnetoelectric couplage

Ultra-fast magnetization dynamics