Institut Néel Grenoble
25 rue des Martyrs BP 166
38042 Grenoble cedex 9
Institut Néel and its scientific surroundings: ESRF, ILL, CEA, Minatec
The DYNA project
DYNA (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, that uses Matlab environment, the move to Python + Qt being in progress.
download current MATLAB version (3.17 March 20, 2019) simulation and refinement
download current Python version (1.0 May 10, 2019) simulation only
download tutorial
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.
Resonant effects include
- 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.
Formalisms
- Parratt
- Boundary-Propagation matrix
Special Features
- 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).
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)
Quantum coherence - CQ
Revealing quantum phenomena in electronic nano-circuits
Helium : from fundamental to applications - HELFA
Helium as model system, hydrodynamic and turbulence, space and astrophysics, instrumentation and cryogenic development, kinetic inductance detectors.
Magnetism and Superconductivity - MagSup
Team Magnetism and Superconductivity at Institut NEEL - Systems involving charge, spin or lattice degrees of freedom.
Optics and materials - OPTIMA
a complete chain of competences that goes from the design and elaboration of new materials to the study of nonlinear optical properties and plasmonics
Materials, Radiations, Structure - MRS
Understanding of the physico-chemical properties of complex materials based on the precise description of their structure
Micro and NanoMagnetism - MNM
Complementary expertise in fabrication, characterisation, and simulations for studies in nanomagnetism with applications in spin electronics and micro-systems
Quantum Nano-Electronics and Spectroscopy - QNES
Electron transport and local spectroscopy of quantum structures
Nano-Optics and Forces - NOF
Nano - optics and forces
Nanophysics and Semiconductors - NPSC
Growth of III-V and II-VI semiconductor nanostructures and their physics in search of new functions for potential applications.
Nanospintronics and Molecular Transport - NanoSpin
Studying magnetism at the nanoscale, where classical and quantum properties can be combined and used for molecular quantum spintronics
Wide bandgap semiconductors - SC2G
Physics of diamond and other wide bandgap semiconductors towards applications in electronics and biotechnologies
Surfaces, Interfaces and Nanostructures - SIN
Experimental and theoretical studies of low dimensional systems
Hybrid systems at low dimensions - HYBRID
Electronic, optical, vibrational, mechanical properties, as well as their interplay at the nanoscale, of novel hybrid systems (nanotubes, graphene, two-dimensional and functionalized materials) which are developed by the group .
Condensed Matter Theory - TMC
Theoretical research related to quantum materials and first-principles theory. >> read more
Thermodynamics and Biophysics of small systems - TPS
Ultra-sensitive instrumentation for electrical and thermal measurements: from biophysics to low temperature condensed matter physics.
Theory of Quantum Circuits - ThQC
Theoretical studies of electronic transport in nanometer-scale devices showing remarkable quantum effects.
Ultra-low temperatures - UBT
Quantum physics at the ultra-low temperature frontier.Published results using DYNA
Published results using Resonant X-ray Reflectivity analyzed with Dyna.