author = "Henriques, A. B. and Hanamoto, L. K. and Ter Haar, E. and Abramof, 
                         Eduardo and Ueta, Antonio Yukio and Rappl, Paulo Henrique de 
          affiliation = "USP, IF, Sao Paulo",
                title = "Tuning of the magnetic field induced sharp band-edge optical 
                         absorption in europium chalcogenides",
              journal = "International Journal of Modern Physics B",
                 year = "2004",
               volume = "18",
               number = "27-29",
                pages = "3813--3816",
                month = "Nov.",
             keywords = "semiconductor, magneto-optics, spintronics.",
             abstract = "The near band-edge polarized optical optical absortion spectra of 
                         EuTe at low temperatures and high magnetic fields were 
                         investigated. The samples were grown by MBE on BaF2 substrates, 
                         and the thickness varied in the 0.18-2.0 mu m range. At high 
                         magnetic fields, the well-known 4f(7) -> 4f(6)5d(t(2g)) optical 
                         transition splits into two well resolved lines at sigma(+) and two 
                         lines for sigma(-). These lines can be described by localized 
                         transitions tunable by the d - f exchange interaction, with a 
                         quadratic dependence on the intensity of the external magnetic 
                         field. Comparative measurements of the magnetization and the 
                         optical absorption as a function temperature provides a further 
                         test of the model of a localized excitation extending over a few 
                         lattice sites.",
           copyholder = "SID/SCD",
                 issn = "0217-9792",
             language = "en",
           targetfile = "tuning of the magnetic field, Henriques.pdf",
        urlaccessdate = "22 jan. 2021"