Riccardo HERTEL

Riccardo HERTEL

Directeur de Recherche, Magnétisme des objets nanostructurés (DMONS)riccardo.hertel@ipcms.unistra.fr
Poste: +33(0)3 88 10 70 83Bureau: 1006

Parcours de recherche

  • Directeur de Recherche CNRS (depuis 2011)
  • Directeur de l’Equipe « Simulation de Structures Magnétiques Mesoscopiques » , Peter Grünberg Institut, Forschungszentrum Jülich GmbH, Allemagne (2004-2010)
  • Postdoc / Habilitation: Max-Planck-Institut für Mikrostrukturphysik, Halle, Allemagne (1999-2004)

Parcours universitaire

  • Qualification de Professeur en France, CNU Section 28 (2012)
  • Qualification de Professeur en Allemagne en Physique Théorique, Univ. Halle-Wittenberg, Allemagne (2005)
  • Chercheur-enseignant Univ. Duisburg-Essen, Allemagne (2005-2010)
  • Thèse de doctorat, Max-Planck-Institut für Metallforschung, Stuttgart, Allemagne (1999)

Recherches actuelles

  • Micromagnétisme
  • Structures topologiques dans les matériaux ferroïques
  • Nanostructures magnétiques tridimensionnelles
  • Dynamique rapide de l’aimantation
  • Théorie et simulations
  • Développement de méthodes numériques
  • Simulations par éléments finis

Publications récentes

Pour une liste exhaustive voir ORCID ou google scholar.

[1]
R. Cheenikundil, R. Hertel, Switchable magnetic frustration in buckyball nanoarchitectures, Applied Physics Letters. 118 (2021) 212403. https://doi.org/10.1063/5.0048936.
[1]
S.A. Pathak, R. Hertel, Three-dimensional chiral magnetization structures in FeGe nanospheres, Physical Review B. 103 (2021) 104414. https://doi.org/10.1103/PhysRevB.103.104414.
[1]
S.A. Pathak, R. Hertel, Geometrically Constrained Skyrmions, Magnetochemistry. 7 (2021) 26. https://doi.org/10.3390/magnetochemistry7020026.
[1]
E.A. Eliseev, A.N. Morozovska, R. Hertel, H.V. Shevliakova, Y.M. Fomichov, V.Y. Reshetnyak, D.R. Evans, Flexo-elastic control factors of domain morphology in core-shell ferroelectric nanoparticles: Soft and rigid shells, Acta Materialia. 212 (2021) 116889. https://doi.org/https://doi.org/10.1016/j.actamat.2021.116889.
[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]
A.N. Morozovska, E.A. Eliseev, R. Hertel, Y.M. Fomichov, V. Tulaidan, V.Y. Reshetnyak, D.R. Evans, Electric field control of three-dimensional vortex states in core-shell ferroelectric nanoparticles, Acta Materialia. 200 (2020) 256–273. https://doi.org/https://doi.org/10.1016/j.actamat.2020.09.003.
[1]
M. Rastei V., V. Pierron-Bohnes, D. Toulemon, C. Bouillet, A. Kakay, R. Hertel, E. Tetsi, S. Begin-Colin, B.P. Pichon, Defect-Driven Magnetization Configuration of Isolated Linear Assemblies of Iron Oxide Nanoparticles, Advanced Functional Materials. 29 (2019) 1903927. https://doi.org/10.1002/adfm.201903927.
[1]
R. Hertel, S. Christophersen, S. Boerm, Large-scale magnetostatic field calculation in finite element micromagnetics with H-2-matrices, in: Journal of Magnetism and Magnetic Materials, 2019: pp. 118–123. https://doi.org/10.1016/j.jmmm.2018.12.103.
[1]
D. Cortés-Ortuño, M. Beg, V. Nehruji, L. Breth, R. Pepper, T. Kluyver, Gary Downing, T. Hesjedal, P. Hatton, T. Lancaster, R. Hertel, O. Hovorka, H. Fangohr, Proposal for a micromagnetic standard problem for materials with Dzyaloshinskii–Moriya interaction, New Journal of Physics. 20 (2018) 113015. https://doi.org/10.1088/1367-2630/aaea1c.
[1]
J.A. Otalora, M. Yan, H. Schultheiss, R. Hertel, A. Kakay, Asymmetric spin-wave dispersion in ferromagnetic nanotubes induced by surface curvature, Physical Review B. 95 (2017) 184415. https://doi.org/10.1103/PhysRevB.95.184415.
[1]
S. Cherifi-Hertel, H. Bulou, R. Hertel, G. Taupier, K.D. (Honorat) Dorkenoo, C. Andreas, J. Guyonnet, I. Gaponenko, K. Gallo, P. Paruch, Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy, Nature Communications. 8 (2017) 15768. https://doi.org/10.1038/ncomms15768.
[1]
A. Fernández-Pacheco, R. Streubel, O. Fruchart, R. Hertel, P. Fischer, R.P. Cowburn, Three-dimensional nanomagnetism, Nature Communications. 8 (2017) 15756. https://doi.org/10.1038/ncomms15756.
[1]
O. Vlašín, R. Jarrier, R. Arras, L. Calmels, B. Warot-Fonrose, C. Marcelot, M. Jamet, P. Ohresser, F. Scheurer, R. Hertel, G. Herranz, S. Cherifi-Hertel, Interface Magnetoelectric Coupling in Co/Pb(Zr,Ti)O3, ACS Applied Materials & Interfaces. 8 (2016) 7553–7563. https://doi.org/10.1021/acsami.5b12777.
[1]
R. Hertel, Ultrafast domain wall dynamics in magnetic nanotubes and nanowires, Journal of Physics: Condensed Matter. 28 (2016) 483002. https://doi.org/10.1088/0953-8984/28/48/483002.
[1]
J.A. Otálora, M. Yan, H. Schultheiss, R. Hertel, A. Kákay, Curvature-Induced Asymmetric Spin-Wave Dispersion, Physical Review Letters. 117 (2016) 227203. https://doi.org/10.1103/PhysRevLett.117.227203.
[1]
S. Gliga, A. Kákay, L.J. Heyderman, R. Hertel, O.G. Heinonen, Broken vertex symmetry and finite zero-point entropy in the artificial square ice ground state, Physical Review B. 92 (2015) 060413. https://doi.org/10.1103/PhysRevB.92.060413.
[1]
V. Sluka, A. Kakay, A.M. Deac, D.E. Buergler, C.M. Schneider, R. Hertel, Spin-torque-induced dynamics at fine-split frequencies in nano-oscillators with two stacked vortices, Nature Communications. 6 (2015) 6409. https://doi.org/10.1038/ncomms7409.
[1]
R. Hertel, M. Faehnle, Macroscopic drift current in the inverse Faraday effect, Physical Review B. 91 (2015) 020411. https://doi.org/10.1103/PhysRevB.91.020411.
[1]
M. Noske, H. Stoll, M. Fähnle, R. Hertel, G. Schütz, Mechanisms for the symmetric and antisymmetric switching of a magnetic vortex core: Differences and common aspects, Physical Review B. 91 (2015) 014414. https://doi.org/10.1103/PhysRevB.91.014414.
[1]
R. Hertel, A. Kákay, Analytic form of transverse head-to-head domain walls in thin cylindrical wires, Journal of Magnetism and Magnetic Materials. 379 (2015) 45–49. https://doi.org/10.1016/j.jmmm.2014.11.073.
[1]
R. Hertel, C. Andreas, Multiscale simulation of Bloch point dynamics in thick nanowires, in: Magnetic Nano- and Microwires: Design, Synthesis, Properties and Applications, Edited by Manuel Vasquez, Woodhead Publishing, Elsevier Ltd., Oxford, UK, 2015: pp. 653–677.
[1]
P.L. Popa, N.T. Kemp, H. Majjad, G. Dalmas, V. Faramarzi, C. Andreas, R. Hertel, B. Doudin, The magnetoelectrochemical switch, Proceedings of the National Academy of Sciences of the United States of America. 111 (2014) 10433–10437. https://doi.org/10.1073/pnas.1322828111.
[1]
R. Hertel, A. Kákay, Hybrid finite-element/boundary-element method to calculate Oersted fields, Journal of Magnetism and Magnetic Materials. 369 (2014) 189–196. https://doi.org/10.1016/j.jmmm.2014.06.047.
[1]
M. Yan, A. Kakay, R. Hertel, Proposal for a direct measurement of the nonadiabatic spin-transfer torque parameter beta and the spin-polarization rate P, Physical Review B. 89 (2014) 054415. https://doi.org/10.1103/PhysRevB.89.054415.
[1]
M. Fähnle, A. Slavin, R. Hertel, Role of the sample boundaries in the problem of dissipative magnetization dynamics, Journal of Magnetism and Magnetic Materials. 360 (2014) 126–130. https://doi.org/10.1016/j.jmmm.2014.02.031.
[1]
C. Andreas, S. Gliga, R. Hertel, Numerical micromagnetism of strong inhomogeneities, Journal of Magnetism and Magnetic Materials. 362 (2014) 7–13. https://doi.org/10.1016/j.jmmm.2014.02.097.
[1]
C. Andreas, A. Kákay, R. Hertel, Multiscale and multimodel simulation of Bloch-point dynamics, Physical Review B. 89 (2014) 134403. https://doi.org/10.1103/PhysRevB.89.134403.
[1]
M. Yan, A. Kákay, C. Andreas, R. Hertel, Spin-Cherenkov effect and magnonic Mach cones, Physical Review B. 88 (2013) 220412. https://doi.org/10.1103/PhysRevB.88.220412.
[1]
R. Hertel, Curvature-induced Magnetochirality, SPIN. 03 (2013) 1340009. https://doi.org/10.1142/S2010324713400092.
[1]
S. Gliga, A. Kakay, R. Hertel, O.G. Heinonen, Spectral Analysis of Topological Defects in an Artificial Spin-Ice Lattice, Physical Review Letters. 110 (2013) 117205. https://doi.org/10.1103/PhysRevLett.110.117205.
[1]
R. Hertel, Magnetic Nanostructures Vortex states a la carte, Nature Nanotechnology. 8 (2013) 318-U29. https://doi.org/10.1038/nnano.2013.81.
[1]
D.E. Bürgler, R. Lehndorff, V. Sluka, A. Kakay, R. Hertel, C.M. Schneider, Spin-transfer Torque effects in single-crystalline nanopillars, in: Nanostructured Materials for Magnetoelectronics, Springer, edited by B. Aktas and F. Mikailzade, Heildelberg, 2013: pp. 25–56. http://dx.doi.org/10.1007/978-3-642-34958-4.
[1]
V. Sluka, A. Kakay, A.M. Deac, D.E. Buergler, R. Hertel, C.M. Schneider, Quenched Slonczewski windmill in spin-torque vortex oscillators, Physical Review B. 86 (2012) 214422. https://doi.org/10.1103/PhysRevB.86.214422.
[1]
K.M. Seemann, F. Garcia-Sanchez, F. Kronast, J. Miguel, A. Kakay, C.M. Schneider, R. Hertel, F. Freimuth, Y. Mokrousov, S. Bluegel, Disentangling the Physical Contributions to the Electrical Resistance in Magnetic Domain Walls: A Multiscale Study, Physical Review Letters. 108 (2012) 077201 / p.1–5. https://doi.org/10.1103/PhysRevLett.108.077201.
[1]
M. Yan, C. Andreas, A. Kakay, F. Garcia-Sanchez, R. Hertel, Chiral symmetry breaking and pair-creation mediated Walker breakdown in magnetic nanotubes, Applied Physics Letters. 100 (2012) 252401 /p.1–4. https://doi.org/10.1063/1.4727909.
[1]
M. Yan, C. Andreas, A. Kakay, F. Garcia-Sanchez, R. Hertel, Fast domain wall dynamics in magnetic nanotubes: Suppression of Walker breakdown and Cherenkov-like spin wave emission, Applied Physics Letters. 99 (2011) 122505 /p. 1–3. https://doi.org/10.1063/1.3643037.
[1]
V. Sluka, A. Kakay, A.M. Deac, D.E. Buergler, R. Hertel, C.M. Schneider, Spin-transfer torque induced vortex dynamics in Fe/Ag/Fe nanopillars, Journal of Physics D-Applied Physics. 44 (2011) 384002 /p. 1–8. https://doi.org/10.1088/0022-3727/44/38/384002.
[1]
F. Kronast, N. Friedenberger, K. Ollefs, S. Gliga, L. Tati-Bismaths, R. Thies, A. Ney, R. Weber, C. Hassel, F.M. Roemer, A.V. Trunova, C. Wirtz, R. Hertel, H.A. Duerr, M. Farle, Element-Specific Magnetic Hysteresis of Individual 18 nm Fe Nanocubes, Nano Letters. 11 (2011) 1710–1715. https://doi.org/10.1021/nl200242c.