Neutron powder diffraction measurements of the spinel MgGa 2O4: Cr3+ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN

M. A.F.M. Da Silva; L. P. Sosman; F. Yokaichiya; V. L. Mazzocchi; C. B.R. Parente; J. Mestnik-Filho; P. F. Henry; H. N. Bordallo

doi:10.1088/1742-6596/340/1/012041

Neutron powder diffraction measurements of the spinel MgGa ₂O₄: Cr³⁺ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN

M. A.F.M. Da Silva^*, L. P. Sosman, F. Yokaichiya, V. L. Mazzocchi, C. B.R. Parente, J. Mestnik-Filho, P. F. Henry, H. N. Bordallo

^*Corresponding author for this work

4 Citations (Scopus)

Abstract

Optical materials that emit from the visible to the near-infrared spectral region are of great interest due to their possible application as tunable radiation sources, as signal transmission, display, optoelectronics signal storage, cellulose industry as well as in dosimetry. One important family of such systems are the spinel compounds doped with Cr³⁺, in which the physical the properties are related to the insertion of punctual defects in the crystalline structure. The purpose of our work is two fold. First, we compare the luminescence of the MgGa₂O₄-Ga₂O ₃ system with the single phase Ga₂O₃ and MgGa₂O₄ and relate structural changes observed in MgGa₂O₄-Ga₂O₃ system to the optical properties, and secondly, to compare the neutron powder diffraction results obtained using two diffractometers: D2B located at the ILL (Grenoble, France) and Aurora located at IPEN (São Paulo, Brazil). In the configuration chosen, Aurora shows an improved resolution, which is related to the design of its silicon focusing monochromator.

Original language	English
Article number	012041
Book series	Journal of Physics: Conference Series
Volume	340
ISSN	1742-6588
DOIs	https://doi.org/10.1088/1742-6596/340/1/012041
Publication status	Published - 1 Jan 2012
Event	5th European Conference on Neutron Scattering, ECNS 2011 - Prague, Czech Republic Duration: 17 Jul 2011 → 21 Jul 2011

Conference

Conference	5th European Conference on Neutron Scattering, ECNS 2011
Country/Territory	Czech Republic
City	Prague
Period	17/07/2011 → 21/07/2011

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10.1088/1742-6596/340/1/012041

da_Silva_2012_J._Phys.__Conf._Ser._340_012041Final published version, 0.99 MB

Cite this

Da Silva, M. A. F. M., Sosman, L. P., Yokaichiya, F., Mazzocchi, V. L., Parente, C. B. R., Mestnik-Filho, J., Henry, P. F., & Bordallo, H. N. (2012). Neutron powder diffraction measurements of the spinel MgGa ₂O₄: Cr³⁺ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN. Journal of Physics: Conference Series, 340, [012041]. https://doi.org/10.1088/1742-6596/340/1/012041

Neutron powder diffraction measurements of the spinel MgGa ₂O₄ : Cr³⁺ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN. / Da Silva, M. A.F.M.; Sosman, L. P.; Yokaichiya, F. et al.

In: Journal of Physics: Conference Series, Vol. 340, 012041, 01.01.2012.

Research output: Contribution to journal › Conference article › Research › peer-review

Da Silva, MAFM, Sosman, LP, Yokaichiya, F, Mazzocchi, VL, Parente, CBR, Mestnik-Filho, J, Henry, PF & Bordallo, HN 2012, 'Neutron powder diffraction measurements of the spinel MgGa ₂O₄: Cr³⁺ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN', Journal of Physics: Conference Series, vol. 340, 012041. https://doi.org/10.1088/1742-6596/340/1/012041

Da Silva MAFM, Sosman LP, Yokaichiya F, Mazzocchi VL, Parente CBR, Mestnik-Filho J et al. Neutron powder diffraction measurements of the spinel MgGa ₂O₄: Cr³⁺ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN. Journal of Physics: Conference Series. 2012 Jan 1;340:012041. doi: 10.1088/1742-6596/340/1/012041

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title = "Neutron powder diffraction measurements of the spinel MgGa 2O4: Cr3+ - A comparative study between the high flux diffractometer D2B at the ILL and the high resolution powder diffractometer Aurora at IPEN",

abstract = "Optical materials that emit from the visible to the near-infrared spectral region are of great interest due to their possible application as tunable radiation sources, as signal transmission, display, optoelectronics signal storage, cellulose industry as well as in dosimetry. One important family of such systems are the spinel compounds doped with Cr3+, in which the physical the properties are related to the insertion of punctual defects in the crystalline structure. The purpose of our work is two fold. First, we compare the luminescence of the MgGa2O4-Ga2O 3 system with the single phase Ga2O3 and MgGa2O4 and relate structural changes observed in MgGa2O4-Ga2O3 system to the optical properties, and secondly, to compare the neutron powder diffraction results obtained using two diffractometers: D2B located at the ILL (Grenoble, France) and Aurora located at IPEN (S{\~a}o Paulo, Brazil). In the configuration chosen, Aurora shows an improved resolution, which is related to the design of its silicon focusing monochromator.",

author = "{Da Silva}, {M. A.F.M.} and Sosman, {L. P.} and F. Yokaichiya and Mazzocchi, {V. L.} and Parente, {C. B.R.} and J. Mestnik-Filho and Henry, {P. F.} and Bordallo, {H. N.}",

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AU - Sosman, L. P.

AU - Yokaichiya, F.

AU - Mazzocchi, V. L.

AU - Parente, C. B.R.

AU - Mestnik-Filho, J.

AU - Henry, P. F.

AU - Bordallo, H. N.

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N2 - Optical materials that emit from the visible to the near-infrared spectral region are of great interest due to their possible application as tunable radiation sources, as signal transmission, display, optoelectronics signal storage, cellulose industry as well as in dosimetry. One important family of such systems are the spinel compounds doped with Cr3+, in which the physical the properties are related to the insertion of punctual defects in the crystalline structure. The purpose of our work is two fold. First, we compare the luminescence of the MgGa2O4-Ga2O 3 system with the single phase Ga2O3 and MgGa2O4 and relate structural changes observed in MgGa2O4-Ga2O3 system to the optical properties, and secondly, to compare the neutron powder diffraction results obtained using two diffractometers: D2B located at the ILL (Grenoble, France) and Aurora located at IPEN (São Paulo, Brazil). In the configuration chosen, Aurora shows an improved resolution, which is related to the design of its silicon focusing monochromator.

AB - Optical materials that emit from the visible to the near-infrared spectral region are of great interest due to their possible application as tunable radiation sources, as signal transmission, display, optoelectronics signal storage, cellulose industry as well as in dosimetry. One important family of such systems are the spinel compounds doped with Cr3+, in which the physical the properties are related to the insertion of punctual defects in the crystalline structure. The purpose of our work is two fold. First, we compare the luminescence of the MgGa2O4-Ga2O 3 system with the single phase Ga2O3 and MgGa2O4 and relate structural changes observed in MgGa2O4-Ga2O3 system to the optical properties, and secondly, to compare the neutron powder diffraction results obtained using two diffractometers: D2B located at the ILL (Grenoble, France) and Aurora located at IPEN (São Paulo, Brazil). In the configuration chosen, Aurora shows an improved resolution, which is related to the design of its silicon focusing monochromator.

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