udkm1Dsim -- A Python toolbox for simulating 1D ultrafast dynamics in condensed matter

Abstract

The udkm1Dsim toolbox is a collection of Python classes and routines to simulate the thermal, structural, and magnetic dynamics after laser excitation as well as the according X-ray scattering response in one-dimensional sample structures. The toolbox provides the capabilities to define arbitrary layered structures on the atomic level including a rich database of element-specific physical properties. The excitation of dynamics is represented by an $N$-temperature-model which is commonly applied in ultrafast physics. Structural dynamics due to thermal stresses are calculated by a linear-chain model of masses and springs. The implementation of specific magnetic dynamics can be easily accomplished by the user employing a generalized magnetization interface class. The resulting X-ray diffraction response is computed by kinematical or dynamical X-ray theory which can also include polarization-dependent magnetic scattering. The udkm1Dsim toolbox is highly modular and allows for injecting user-defined inputs at any step within the simulation procedure.

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Cited by in corpus (14)

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• Controlling effective field contributions to laser-induced magnetization precession by heterostructure design
• Ultrafast behavior of induced and intrinsic magnetic moments in CoFeB/Pt bilayers probed by element-specific measurements in the extreme ultraviolet spectral range
• Non-thermal electrons open the non-equilibrium pathway of the phase transition in FeRh
• Laser-driven resonant soft-X-ray scattering for probing picosecond dynamics of nanometre-scale order
• Ultrafast energy-dispersive soft-x-ray diffraction in the water window with a laser-driven source
• Spectroscopic probe of ultrafast magnetization dynamics in the extreme ultraviolet spectral range
• Pump--probe x-ray microscopy of photo-induced magnetization dynamics at MHz repetition rates
• Ultrafast heat transfer in single palladium nanocrystals seen with an X-ray free-electron laser
• Large strain contribution to the laser-driven magnetization response of magnetostrictive TbFe${}_2$
• Phonon-dominated energy transport in purely metallic heterostructures
• X-ray Free Electron Laser based Dark-Field X-ray Microscopy