Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Mentink, J"'
Time-dependent Schwinger boson mean-field theory of supermagnonic propagation in 2D antiferromagnets
Autor:
Bouman, M. D., Mentink, J. H.
Publikováno v:
SciPost Phys. 17, 159 (2024)
Understanding the speed limits for the propagation of magnons is of key importance for the development of ultrafast spintronics and magnonics. Recently, it was predicted that in 2D antiferromagnets, spin correlations can propagate faster than the hig
Externí odkaz:
http://arxiv.org/abs/2306.16382
Autor:
Formisano, F., Gareev, T. T., Khusyainov, D. I., Fedianin, A. E., Dubrovin, R. M., Syrnikov, P. P., Afanasiev, D., Pisarev, R. V., Kalashnikova, A. M., Mentink, J. H., Kimel, A. V.
Publikováno v:
APL Materials 12, 011105 (2024)
Controlled generation of coherent spin waves with highest possible frequencies and the shortest possible wavelengths is a cornerstone of spintronics and magnonics. Here, using the Heisenberg antiferromagnet RbMF$_3$, we demonstrate that laser-induced
Externí odkaz:
http://arxiv.org/abs/2303.06996
We review and discuss the process of single-shot helicity-independent all-optical switching of magnetization by which a single suitably-ultrafast excitation, under the right conditions, toggles magnetization from one stable state to another. For almo
Externí odkaz:
http://arxiv.org/abs/2205.14342
Autor:
Kern, L. -M., Pfau, B., Deinhart, V., Schneider, M., Klose, C., Gerlinger, K., Wittrock, S., Engel, D., Will, I., Günther, C. M., Liefferink, R., Mentink, J. H., Wintz, S., Weigand, M., Huang, M. -J., Battistelli, R., Metternich, D., Büttner, F., Höflich, K., Eisebitt, S.
Magnetic skyrmions are quasiparticles with non-trivial topology, envisioned to play a key role in next-generation data technology while simultaneously attracting fundamental research interest due to their emerging topological charge. In chiral magnet
Externí odkaz:
http://arxiv.org/abs/2202.12057
Autor:
Dolgikh, I. A., Blank, T. G. H., Buzdakov, A. G., Li, G., Prabhakara, K. H., Patel, S. K. K., Medapalli, R., Fullerton, E. E., Koplak, O. V., Mentink, J. H., Zvezdin, K. A., Zvezdin, A. K., Christianen, P. C. M., Kimel, A. V.
Ultrafast heating of FeRh by a femtosecond laser pulse launches a magneto-structural phase transition from an antiferromagnetic to a ferromagnetic state. Aiming to reveal the ultrafast kinetics of this transition, we studied magnetization dynamics wi
Externí odkaz:
http://arxiv.org/abs/2202.03931
Autor:
Fabiani, G., Mentink, J. H.
Findings ways to achieve switching between magnetic states at the fastest possible time scale that simultaneously dissipates the least amount of energy is one of the main challenges in magnetism. Antiferromagnets exhibit intrinsic dynamics in the THz
Externí odkaz:
http://arxiv.org/abs/2111.14202
Neuromorphic computing aims to mimic the architecture of the human brain to carry out computational tasks that are challenging and much more energy consuming for standard hardware. Despite progress in several fields of physics and engineering, the re
Externí odkaz:
http://arxiv.org/abs/2103.12817
Publikováno v:
Phys. Rev. Lett. 127, 097202 (2021)
We investigate the propagation of magnons after ultrashort perturbations of the exchange interaction in the prototype two-dimensional Heisenberg antiferromagnet. Using the recently proposed neural quantum states, we predict highly anisotropic spreadi
Externí odkaz:
http://arxiv.org/abs/2101.10945
Autor:
Li, G., Medapalli, R., Mentink, J. H., Mikhaylovskiy, R. V., Blank, T. G. H., Patel, S. K. K., Zvezdin, A. K., Rasing, Th., Fullerton, E. E., Kimel, A. V.
Understanding how fast short-range interactions build up long-range order is one of the most intriguing topics in condensed matter physics. FeRh is a test specimen for studying this problem in magnetism, where the microscopic spin-spin exchange inter
Externí odkaz:
http://arxiv.org/abs/2001.06799
Autor:
Fabiani, G., Mentink, J. H.
We investigate entanglement dynamics in the antiferromagnetic Heisenberg model in two dimensions following a spatially anisotropic quench of the exchange interactions. Opposed to established results in one dimension, the magnon quasiparticles show an
Externí odkaz:
http://arxiv.org/abs/1912.10845