Institut Néel and its scientific surroundings: ESRF, ILL, CEA, Minatec

The DYNA project

or "Dynamic x-ray reflectivity (off-or-on resonance regime for isotropic, anisotropic and magnetic multilayers) simulation program" is a simulation tool to analyze structural, magnetic and electronic profiles along the growth direction of ultrathin layers. It simulates conventional x-ray or optical reflectivity, resonant (or "anomalous") x-ray reflectivity, "orbital reflectometry", magnetic resonant x-ray reflectivity with applications to magnetic or anisotropic layers, in hard or soft matter.

DYNA is an on-going open-source project, uses Python + Qt, or Matlab environment.

download tutorial

In case of use, please cite the reference paper:

M. Elzo, et al., Journal of Magnetism and Magnetic Materials, 324 (2), pp. 105-112 (2012) preprint


In Dyna’s directory there should be three directories

- Dyna/Src
- Dyna/Tables
- Dyna/Projects

Python Code

  • SOURCES (./Src/): 2020-01-08 Version 2.01 Dyna

Example PYTHON project: Projet W(1nm)/Si(4nm) x 10 on Si substrate

Matlab Code

  • SOURCES (./Src/): 2019/03/20 Version 3.17 Dyna
  • PROJECTS (./Projects/):

Example MATLAB project: Projet W(1nm)/Si(4nm) x 10 on Si substrate

Charge and Magnetic Scattering Amplitudes

  • TABLES (./Tables/): Scattering factors tables: Tables

Project developpers and code contributors

- Stéphane Grenier (Inst. Néel)
- Jean-Marc Tonnerre (Inst. Néel)
- Nicolas Jaouen (Synchrotron Soleil)
- Emmanuelle Jal (Sorbonne Université, LCPMR)
- Marta Elzo (PhD, Inst. Néel & Soleil, 2009-2012)
- Ingrid Hallsteinsen - Padraic Shaffer’s group - Berkeley Nat. Lab.


  • Parratt
  • Boundary-Propagation matrix


  • magnetic-sensitive susceptibility, arbitrary magnetic moment direction described by Euler angles, with the limitation of neglictible spin-orbit coupling in the valence states
  • anisotropic susceptibility, in the limitation of an uniaxial symmetry along the depth of the film, for the simulation of oriented molecules or orbitally ordered films.
  • Angular/Q scans
  • Energy spectra at fix angle or fix Q
  • Polarization Analysis, in and out
  • Refinement in user-defined interval, with limits on parameters, and constrains between parameters
  • Multifit: one system is refined by simultaneous simulations of various data (angle and energy scans, of any polarization, energy or angle configurations).

Publications using Dyna


Resonant Faraday effect using high-order harmonics for the investigation of ultrafast demagnetization
Carla Alves, Guillaume Lambert, Victor Malka, Michel Hehn, Gregory Malinowski, Marcel Hennes, Valentin Chardonnet, Emmanuelle Jal, Jan Lüning, and Boris Vodungbo
Phys. Rev. B 100, 144421 – Published 15 October 2019

Influence of oxide density on O2 diffusivity in thermally grown SiO2 on Sia nd SiGe and on oxidation kinetics
Fabien Rozé, Patrice Gergaud, Nicolas Jaouen, Olivier Gourhant, Elisabeth Blanquet and François Bertin
Semicond. Sci. Technol. 34 (2019) 065023
doi: 10.1088/1361-6641/ab1228


Emergent c-axis magnetic helix in manganite-nickelate superlattices
G. Fabbris, N. Jaouen, D. Meyers, J. Feng, J. D. Hoffman, R. Sutarto, S. G. Chiuzbăian, A. Bhattacharya, and M. P. M. Dean
Phys. Rev. B 98, 180401(R)


Spin valve heterostructures built using the shadowing effect: Setting NiFe and Co magnetization directions for non-collinear couplings
A. C. Krohling, T. E. P. Bueno, V. P. Nascimento, C. Larica, K. Krambrock, D. Menzel, F. J. Litterst, and E. C. Passamani
Appl. Phys. Lett. 111, 262404 (2017)
doi: 10.1063/1.5003220

Growth and properties of CoO/Fe perpendicular exchange coupled ultra-thin films
A.D. Lamirand, S. Grenier, A.Y. Ramos, M. De Santis, A. Bailly, E. Mossang, J.M. Tonnerre, D. Testemale, H.C.N. Tolentino, N. Jaouen, M.M. Soares, M. Jamet, O. Proux
Journal of Magnetism and Magnetic Materials, Elsevier, 2017, 443, pp.195-201

Structural dynamics during laser-induced ultrafast demagnetization
Emmanuelle Jal, Víctor López-Flores, Niko Pontius, Tom Ferté, Nicolas Bergeard, Christine Boeglin, Boris Vodungbo, Jan Lüning, and Nicolas Jaouen
Phys. Rev. B 95, 184422 (2017)

Study of the influence of Nb buffer layer on the exchange coupling induced at the Co/IrMn interface
I.L.C. Merino, L.C. Figueiredo, E.C. Passamani, V.P. Nascimento, F. Pelegrini, E. Baggio Saitovitch
Journal of Magnetism and Magnetic Materials, Volume 432, 15 June 2017, Pages 494-500 (2017)


Interlayer coupling through a dimensionality-induced magnetic state
M. Gibert, M. Viret, P. Zubko, N. Jaouen, J.-M. Tonnerre, A. Torres-Pardo, S. Catalano, A. Gloter, O. Stephan, J.-M. Triscone
Nature Communications, Volume 7, 11227 (2016)


Interfacial Control of Magnetic Properties at LaMnO3/LaNiO3 Interfaces
M. Gibert, M. Viret, A. Torres-Pardo, C. Piamonteze, P. Zubko, N. Jaouen, J.-M. Tonnerre, A. Mougin, J. Fowlie, S. Catalano, A. Gloter, O. Stéphan, and J.-M. Triscone
Nano Letters, Volume 15, Issue 11, 11 November 2015, Pages 7355-7361

Element-specific magnetization redistribution at YBa2Cu3O7/La2/3Ca1/3MnO3 interfaces
A. Alberca, M. A. Uribe-Laverde, Y. W. Windsor, M. Ramakrishnan, L. Rettig, I. Marozau, J-M. Tonnerre, J. Stahn, U. Staub, and C. Bernhard
Physical Review B 92, 174415 (2015)

Interface Fe magnetic moment enhancement in MgO/Fe/MgO trilayers
Emmanuelle Jal, Jeffrey B. Kortright, Tyler Chase, TianMin Liu, Alexander X. Gray, Padraic Shafer, Elke Arenholz, Pengfa Xu, Jaewoo Jeong, Mahesh G. Samant, Stuart S. P. Parkin and Hermann A. Dürr
Appl. Phys. Lett. 107, 092404 (2015)

Noncollinearity of the canted spins across ultrathin Fe films on vicinal Ag surfaces
Emmanuelle Jal, Maciej Dabrowski, Jean-Marc Tonnerre, Marek Przybylski, Stéphane Grenier, Nicolas Jaouen, Jürgen Kirschner
Physical Review B 91, 214418 (2015)


Magnetization profile across Au-covered bcc Fe films grown on a vicinal surface of Ag(001) as seen by x-ray resonant magnetic reflectivity
Emmanuelle Jal, Maciej Dabrowski, Jean-Marc Tonnerre, Marek Przybylski, Stéphane Grenier, Nicolas Jaouen, Jürgen Kirschner
Physical Review B 87, 224418 (2013)


X-ray resonant magnetic reflectivity of stratified magnetic structures: Eigenwave formalism and application to a W/Fe/W trilayer
Marta Elzo; Emmanuelle Jal; Oana Bunau; Stéphane Grenier; Aline Y. Ramos; Hélio Tolentino; Yves Joly; Jean-Marc Tonnerre; Nicolas Jaouen
Journal of Magnetism and Magnetic Materials, 324 (2), pp. 105-112 (2012)

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