High energy sideband on the magnetic polaron related luminescence in EuTe
E. Heredia, P. Motisuke, P. H. de Oliveira Rappl, M. J. S. P. Brasil and F. Iikawa
ARTIGO
Inglês
Agradecimentos: This work was partially funded by CAPES, CNPq, and FAPESP
Abstract: We investigated the near band gap luminescence of EuTe thin films grown by molecular beam epitaxy, using excitation intensities up to 2 x 10(5) W/cm(2). Besides the previously reported high energy emissions MX1 and MX2, we observed an additional emission band at higher energies. This...
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Abstract: We investigated the near band gap luminescence of EuTe thin films grown by molecular beam epitaxy, using excitation intensities up to 2 x 10(5) W/cm(2). Besides the previously reported high energy emissions MX1 and MX2, we observed an additional emission band at higher energies. This higher-energy band is only detected when high excitation intensities, over 2 kW/cm(2), are used. With increasing externally applied magnetic field, this additional emission band shifts to lower energies at a rate even higher than the MX1. The two bands, however, have different temperature dependences and decay times, suggesting that distinct electronic states are involved in their emission
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COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
Aberto
DOI: https://doi.org/10.1063/1.4748981
Texto completo: https://aip.scitation.org/doi/10.1063/1.4748981
High energy sideband on the magnetic polaron related luminescence in EuTe
E. Heredia, P. Motisuke, P. H. de Oliveira Rappl, M. J. S. P. Brasil and F. Iikawa
High energy sideband on the magnetic polaron related luminescence in EuTe
E. Heredia, P. Motisuke, P. H. de Oliveira Rappl, M. J. S. P. Brasil and F. Iikawa
Fontes
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Applied physics letters (Fonte avulsa) |