@Article{SuarezMCLBBRI:2015:EfPbDo,
author = "Suarez, Em{\'{\i}}lio Heredia and Motisuke, Paulo and Couto
J{\'u}nior, O. D. D. and Lang, R. and Balanta, M. A. G. and
Brasil, M. J. S. P. and Rappl, Paulo Henrique de Oliveira and
Iikawa, F.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Estadual
de Campinas (UNICAMP)} and {Universidade Estadual de Campinas
(UNICAMP)} and {} and {Universidade Estadual de Campinas
(UNICAMP)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}
and {Universidade Estadual de Campinas (UNICAMP)}",
title = "Effects of Pb doping on the magneto-optical properties of EuPbTe
epitaxial films",
journal = "Journal of Luminescence",
year = "2015",
volume = "167",
pages = "193--196",
keywords = "Magnetic-semiconductors, EuTe, EuPbTe, Photoluminescence, Magnetic
polaron, Excitons.",
abstract = "We investigate the magneto-optical properties of
magnetic-semiconductor Eu1\−xPbxTe epitaxial layers with Pb
contents up to 5%. We show that the inclusion of a small amount of
Pb atoms in EuTe affects the optical and magnetic properties of
the resulting alloy. The incorporation of Pb gives rise to a
reduction of the N{\'e}el temperature and of the slope of the
giant magneto-red-shift of the magnetic polaron optical emission.
All those effects can be understood in terms of the magnetic
dilution effect due to the reduced Eu concentration. The
introduction of Pb also reveals a splitting of the high emission
energy side-band under applied magnetic field, presenting a more
complex feature of the band structure of the alloys. Our results
cannot be fully explained on the basis of the current theoretical
knowledge of the EuTe band structure and, therefore, we expect
that they can stimulate future theoretical investigations and
encourage applied investigations of spintronic devices based on
these materials.",
doi = "10.1016/j.jlumin.2015.06.033",
url = "http://dx.doi.org/10.1016/j.jlumin.2015.06.033",
issn = "0022-2313",
language = "en",
urlaccessdate = "27 abr. 2024"
}