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pro vyhledávání: '"Lenk, Benjamin"'
Spatially resolved measurements of the magnetization dynamics induced by an intense laser pump-pulse reveal that the frequencies of resulting spin wave modes depend strongly on the distance to the pump center. This can be attributed to a laser genera
Externí odkaz:
http://arxiv.org/abs/1405.3470
In the framework of magnonics all-optical femtosecond laser experiments are used to study spin waves and their relaxation paths. Magnonic crystal structures based on antidots allow the control over the spin-wave modes. In these two-dimensional magnet
Externí odkaz:
http://arxiv.org/abs/1208.5383
We present an investigation of rectangular antidot lattices in a CoFeB film. Magnonic band structures are numerically calculated, and band gaps are predicted which shift in frequency by 0.9 GHz when rotating the external field from the long to the sh
Externí odkaz:
http://arxiv.org/abs/1208.5339
Publikováno v:
Physics Reports 507 (2011), 107-136
Novel material properties can be realized by designing waves' dispersion relations in artificial crystals. The crystal's structural length scales may range from nano- (light) up to centimeters (sound waves). Because of their emergent properties these
Externí odkaz:
http://arxiv.org/abs/1101.0479
Publikováno v:
Applied Physics Letters 97 (2010), 092506
In this manuscript time-resolved magneto-optical Kerr effect experiments on structured CoFeB films are presented. The geometries considered are two dimensional square lattices of micrometer-sized antidots, fabricated by a focused ion beam. The spin-w
Externí odkaz:
http://arxiv.org/abs/1006.4038
Autor:
Hamrle, Jaroslav, Pištora, Jaromír, Hillebrands, Burkard, Lenk, Benjamin, Muenzenberg, Markus
Time-resolved magneto-optical Kerr effect (MOKE) and Brillouin light scattering (BLS) spectroscopy are important techniques for the investigation of magnetization dynamics. Within this article, we calculate analytically the MOKE and BLS signals from
Externí odkaz:
http://arxiv.org/abs/1006.1906
Publikováno v:
Physical Review B 82 (2010), 134443
The spin-wave relaxation mechanisms after intense laser excitation in ferromagnetic nickel films are investigated with all-optical pump-probe experiments. Uniform precession (Kittel mode), Damon-Eshbach surface modes and perpendicular standing spin w
Externí odkaz:
http://arxiv.org/abs/0803.3686
Publikováno v:
Scientific Reports
Spatially resolved measurements of the magnetization dynamics on a thin CoFeB film induced by an intense laser pump-pulse reveal that the frequencies of resulting spin-wave modes depend strongly on the distance to the pump center. This can be attribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::cbe6e7060b1440ff64f860924d2589d3
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