Zobrazeno 1 - 10
of 780
pro vyhledávání: '"Versteeg, R"'
Autor:
Versteeg, R. B., Chiocchetta, A., Sekiguchi, F., Aldea, A. I. R., Sahasrabudhe, A., Budzinauskas, K., Wang, Zhe, Tsurkan, V., Loidl, A., Khomskii, D. I., Diehl, S., van Loosdrecht, P. H. M.
Excitation by light pulses enables the manipulation of phases of quantum condensed matter. Here, we photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free energy landscape of the Kitaev-Heisenberg magnet $\alpha$-RuCl$_3$, wi
Externí odkaz:
http://arxiv.org/abs/2005.14189
Publikováno v:
Phys. Rev. B 100, 224426 (2019)
Clusters of single spins form the relevant spin entities in the formation of long-range magnetic order in spin cluster Mott insulators. Such type of spin order bears resemblance to molecular crystals, and we therefore may expect a prototypical spin w
Externí odkaz:
http://arxiv.org/abs/1908.10279
Autor:
Versteeg, R. B., Zhu, J., Boguschewski, C., Sekiguchi, F., Sahasrabudhe, A., Budzinauskas, K., Padmanabhan, P., Becker, P., Khomskii, D. I., van Loosdrecht, P. H. M.
Publikováno v:
Phys. Rev. B 100, 064401 (2019)
Cu$_4$ triplet clusters form the relevant spin entity for the formation of long-range magnetic order in the cluster magnet Cu$_2$OSeO$_3$. Using time-resolved Raman spectroscopy, we probed photoinduced spin and lattice dynamics in this Mott insulator
Externí odkaz:
http://arxiv.org/abs/1902.05329
Autor:
Padmanabhan, P., Sekiguchi, F., Versteeg, R. B., Slivina, E., Tsurkan, V., Bordács, S., Kézsmárki, I., van Loosdrecht, P. H. M.
Publikováno v:
Phys. Rev. Lett. 122, 107203 (2019)
GaV$_4$S$_8$ is a multiferroic semiconductor hosting magnetic cycloid (Cyc) and N\'eel-type skyrmion lattice (SkL) phases with a broad region of thermal and magnetic stability. Here, we use time-resolved magneto-optical Kerr spectroscopy and micro-ma
Externí odkaz:
http://arxiv.org/abs/1808.08476
Autor:
Versteeg, R. B., Zhu, J., Padmanabhan, P., Boguschewski, C., German, R., Goedecke, M., Becker, P., van Loosdrecht, P. H. M.
We present a flexible and efficient ultrafast time-resolved spontaneous Raman spectroscopy setup to study collective excitation and quasi-particle dynamics in quantum matter. The setup has a broad energy tuning range extending from the visible to nea
Externí odkaz:
http://arxiv.org/abs/1807.00525
Publikováno v:
Phys Rev. B 99, 094305 (2019)
Time-resolved spontaneous Raman spectroscopy serves as a probe for incoherent quasiparticle and collective excitation dynamics, and allows to distinguish symmetry changes across a photoinduced phase transition through the inelastic light scattering s
Externí odkaz:
http://arxiv.org/abs/1806.05986
Autor:
Versteeg, R. B., Vergara, I., Schäfer, S. D., Bischoff, D., Aqeel, A., Palstra, T. T. M., Grüninger, M., van Loosdrecht, P. H. M
We report on the linear optical properties of the chiral magnet Cu2OSeO3, specifically associated with the absence of inversion symmetry, the chiral crystallographic structure, and magnetic order. Through spectroscopic ellipsometry, we observe local
Externí odkaz:
http://arxiv.org/abs/1605.01900
Autor:
Langner, M. C., Roy, S., Kemper, A. F., Chuang, Y. -D., Mishra, S. K., Versteeg, R. B., Zhu, Y., Hertlein, M. P., Glover, T. E., Dumesnil, K., Schoenlein, R. W.
Publikováno v:
Phys. Rev. B 92, 184423 (2015)
We have performed time-resolved resonant x-ray scattering studies in the Lanthanide metal Dy to reveal the dynamic response of the helical order exchange coupling to injection of unpolarized spins. The observed spin dynamics are significantly slower
Externí odkaz:
http://arxiv.org/abs/1409.3614
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Akademický článek
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