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@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 = "03 dez. 2020"
}


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