R
Ritwik Mondal
Researcher at University of Konstanz
Publications - 33
Citations - 581
Ritwik Mondal is an academic researcher from University of Konstanz. The author has contributed to research in topics: Magnetization dynamics & Femtosecond. The author has an hindex of 10, co-authored 24 publications receiving 412 citations. Previous affiliations of Ritwik Mondal include Uppsala University & Academy of Sciences of the Czech Republic.
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Ab Initio Theory of Coherent Laser-Induced Magnetization in Metals
TL;DR: This work presents the first materials specific ab initio theory of the magnetization induced by circularly polarized laser light in metals, and compute effective optomagnetic fields that correspond to the induced magnetizations and provide guidelines for achieving all-optical helicity-dependent switching.
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Magnetisation switching of FePt nanoparticle recording medium by femtosecond laser pulses
Robin John,Marco Berritta,Denise Hinzke,Cai Müller,T. Santos,Henning Ulrichs,P. Nieves,P. Nieves,Jakob Walowski,Ritwik Mondal,Oksana Chubykalo-Fesenko,Jeffrey McCord,Peter M. Oppeneer,Ulrich Nowak,Markus Münzenberg +14 more
TL;DR: A complete multiscale model is developed which allows us to optimize the number of laser shots needed to switch the magnetisation of high anisotropy FePt nanoparticles and concludes that only angular momentum induced optically by the inverse Faraday effect will provide switching with one single femtosecond laser pulse.
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Relativistic theory of magnetic inertia in ultrafast spin dynamics
TL;DR: In this paper, the influence of magnetic inertia effects has recently drawn attention in ultrafast magnetization dynamics and switching and the authors derive rigorously a description of inertia in the Landau-L...
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Relativistic theory of spin relaxation mechanisms in the Landau-Lifshitz-Gilbert equation of spin dynamics
TL;DR: In this article, the relativistic equation of motion of spin angular momentum in a magnetic solid under an external electromagnetic field was derived starting from the Dirac-Kohn-Sham equation.
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Relativistic interaction Hamiltonian coupling the angular momentum of light and the electron spin
Ritwik Mondal,Marco Berritta,Charles Paillard,Charles Paillard,Surendra Singh,Brahim Dkhil,Peter M. Oppeneer,Laurent Bellaiche +7 more
TL;DR: Raeliarijaona et al. as mentioned in this paper derived a relativistic interaction Hamiltonian which linearly couples the angular momentum density j of the electromagnetic (EM) field and the electron's spin σ.