@Article{PavlovPNAYBBRA:2018:MaCrIn,
               author = "Pavlov, V. V. and Pisarev, R. V. and Nefedov, S. G. and Akimov, I. 
                         A. and Yakovlev, D. R. and Bayer, M. and B., Henriques. Andr{\'e} 
                         and Rappl, Paulo Henrique de Oliveira and Abramof, Eduardo",
          affiliation = "{Russian Academy of Sciences} and {Russian Academy of Sciences} 
                         and {Russian Academy of Sciences} and {Russian Academy of 
                         Sciences} and {Russian Academy of Sciences} and {Russian Academy 
                         of Sciences} and {Universidade de S{\~a}o Paulo (USP)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Magnetic-field-induced crossover from the inverse Faraday effect 
                         to the optical orientation in EuTe",
              journal = "Journal of Applied Physics",
                 year = "2018",
               volume = "123",
                pages = "e193102",
             abstract = "A time-resolved optical pump-probe technique has been applied for 
                         studying the ultrafast dynamics in the magnetic semiconductor EuTe 
                         near the absorption band gap. We show that application of external 
                         magnetic field up to 6\ T results in crossover from the 
                         inverse Faraday effect taking place on the femtosecond time scale 
                         to the optical orientation phenomenon with an evolution in the 
                         picosecond time domain. We propose a model which includes both 
                         these processes, possessing different spectral and temporal 
                         properties. The circularly polarized optical pumping induces the 
                         electronic transition 4f75d0\→4f65d1 forming the absorption 
                         band gap in EuTe. The observed crossover is related to a strong 
                         magnetic-field shift of the band gap in EuTe at low temperatures. 
                         It was found that manipulation of spin states on intrinsic defect 
                         levels takes place on a time scale of 19 ps in the applied 
                         magnetic field of 6\ T.",
                  doi = "10.1063/1.5027473",
                  url = "http://dx.doi.org/10.1063/1.5027473",
                 issn = "0021-8979",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}