@Article{KaminskiLYBPPYLHLFLBARB:2010:OpSeHa,
               author = "Kaminski, B and Lafrentz, M. and Yakovlev, D. R and Bayer, M. and 
                         Pisarev, R. V. and Pavlov, V. V. and Yakovlev, D. R and Lukoshkin, 
                         V. A. and Henriques, A. B. and Springholz and Linz, G. Johannes 
                         Kepler Univ and Festkorperphys, Inst Halbleiter \& and Linz, 
                         A-4040 and Bauer, G. and Abramof, E. and Rappl, P. H. O. and 
                         Bayer, M.",
          affiliation = "Tech Univ Dortmund, D-44221 Dortmund, Germany. and Tech Univ 
                         Dortmund, D-44221 Dortmund, Germany. and Tech Univ Dortmund, 
                         D-44221 Dortmund, Germany. and Tech Univ Dortmund, D-44221 
                         Dortmund, Germany. and Russian Acad Sci, AF Ioffe Phys Tech Inst, 
                         St Petersburg 194021, Russia. and Russian Acad Sci, AF Ioffe Phys 
                         Tech Inst, St Petersburg 194021, Russia. and Russian Acad Sci, AF 
                         Ioffe Phys Tech Inst, St Petersburg 194021, Russia. and Russian 
                         Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia. 
                         and Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil. and 
                         Johannes Kepler Univ Linz, Inst Halbleiter \& Festkorperphys, 
                         A-4040 Linz, Austria and Johannes Kepler Univ Linz, Inst 
                         Halbleiter \& Festkorperphys, A-4040 Linz, Austria and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and Institut f{\"u}r Halbleiter- und 
                         Festk{\"o}rperphysik, Johannes Kepler Universit{\"a}t Linz, 4040 
                         Linz, Austria and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         Experimentelle Physik 2, Technische Universit{\"a}t Dortmund, 
                         D-44221 Dortmund, Germany",
                title = "Optical second harmonic generation in the centrosymmetric magnetic 
                         semiconductors EuTe and EuSe",
              journal = "Physical Review E",
                 year = "2010",
               volume = "81",
               number = "15",
                pages = "155201",
                month = "Apr.",
             keywords = "electron-spin polarization, molecular-beam epitaxy, europium 
                         chalcogenides, thin-films, harmonic-generation, multiplet 
                         structure, tunnel-junctions, faraday-rotation, field, barriers.",
             abstract = "The magnetic europium chalcogenide semiconductors EuTe and EuSe 
                         are investigated by the spectroscopy of second harmonic generation 
                         (SHG) in the vicinity of the optical band gap formed by 
                         transitions involving the 4f and 5d electronic orbitals of the 
                         magnetic Eu2+ ions. In these materials with centrosymmetric 
                         crystal lattice the electric-dipole SHG process is symmetry 
                         forbidden so that no signal is observed in zero magnetic field. 
                         Signal appears, however, in applied magnetic field with the SHG 
                         intensity being proportional to the square of magnetization. The 
                         magnetic field and temperature dependencies of the induced SHG 
                         allow us to introduce a type of nonlinear optical susceptibility 
                         determined by the magnetic-dipole contribution in combination with 
                         a spontaneous or induced magnetization. The experimental results 
                         can be described qualitatively by a phenomenological model based 
                         on a symmetry analysis and are in good quantitative agreement with 
                         microscopic model calculations accounting for details of the 
                         electronic energy and spin structure.",
                  doi = "10.1103/PhysRevB.81.155201",
                  url = "http://dx.doi.org/10.1103/PhysRevB.81.155201",
                 issn = "1539-3755",
           targetfile = "PhysRevB.81.155201.pdf",
        urlaccessdate = "02 maio 2024"
}