@Article{SubkhangulovHeRaAbRaKi:2015:AlMaPr,
author = "Subkhangulov, R. R. and Henriques, A. B. and Rappl, Paulo Henrique
de Oliveira and Abramof, Eduardo and Rasing, Th. and Kimel, A.
V.",
affiliation = "Radboud Univ Nijmegen, Inst Mol \& Mat, NL-6525 AJ Nijmegen,
Netherlands. and Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo,
Brazil. and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and Radboud
Univ Nijmegen, Inst Mol \& Mat, NL-6525 AJ Nijmegen, Netherlands.
and Radboud Univ Nijmegen, Inst Mol \& Mat, NL-6525 AJ Nijmegen,
Netherlands.",
title = "All-optical manipulation and probing of the d-f exchange
interaction in EuTe",
journal = "Scientific Reports",
year = "2015",
volume = "4",
number = "4368",
month = "Apr.",
keywords = "d-f exchange interaction.",
abstract = "We demonstrate that the ultrafast fast dynamics of the d-f
exchange interaction, between conduction band electrons and
lattice spins in EuTe, can be accessed using an all-optical
technique. Our results reveal, in full detail, the time evolution
of the d-f exchange interaction induced by a femtosecond laser
pulse. Specifically, by monitoring the time resolved dynamics of
the reflectivity changes and Kerr rotation of a weak light pulse
reflected from the surface of the sample, it is shown that an
intense femtosecond light pulse with photon energies higher than
that of the bandgap, triggers spin waves in EuTe. The
laser-induced spin waves modulate the d-f exchange interaction,
and cause the bandgap to oscillate with an amplitude reaching 1
meV, at frequencies up to tens of GHz. The ability to control and
monitor the dynamics of the exchange energy with our all-optical
technique opens up new opportunities for the manipulation of
magnetism at ultrafast time-scales.",
doi = "10.1038/srep04368",
url = "http://dx.doi.org/10.1038/srep04368",
issn = "2045-2322",
label = "isi 2014-05 SubkhangulovHeRaAbRaKi:2014:AlMaPr",
language = "en",
targetfile = "2015_subkhangulov.pdf",
urlaccessdate = "20 abr. 2024"
}