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
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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.; Mazzocchi, V. L.; Parente, C. B.R.; Mestnik-Filho, J.; Henry, P. F.; Bordallo, H. N.
In: Journal of Physics: Conference Series, Vol. 340, 012041, 01.01.2012.Research output: Contribution to journal › Conference article › Research › peer-review
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TY - GEN
T1 - Neutron powder diffraction measurements of the spinel MgGa 2O4
T2 - 5th European Conference on Neutron Scattering, ECNS 2011
AU - Da Silva, M. A.F.M.
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.
PY - 2012/1/1
Y1 - 2012/1/1
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.
U2 - 10.1088/1742-6596/340/1/012041
DO - 10.1088/1742-6596/340/1/012041
M3 - Conference article
AN - SCOPUS:84858600467
VL - 340
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
M1 - 012041
Y2 - 17 July 2011 through 21 July 2011
ER -
ID: 199167588