Zobrazeno 1 - 10
of 277
pro vyhledávání: '"F. Bouree"'
Autor:
S. Beaudet-Savignat, F. Guillet, F. Bouree, B. Minot, E. Bruneton, A. Vincent, Sébastien Lambert
Publikováno v:
Journal of Solid State Chemistry. 179:2602-2608
Crystalline structures of La 9.33 Si 6 O 26 and La 9 AE Si 6 O 26+δ ( AE =Ba, Sr and Ca) doped apatites-type lanthanum silicates were investigated by X-ray and neutron powder diffraction at room temperature. The results obtained after different mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c89419b4964db88d15afd5a79a02439e
https://doi.org/10.1016/j.jssc.2006.04.056
https://doi.org/10.1016/j.jssc.2006.04.056
Autor:
Antoine Maignan, Ninh Nguyen, Gilles André, Bernard Raveau, Claude Michel, Maryvonne Hervieu, A. Ducouret, Vincent Hardy, F. Bouree, Yohann Bréard
Publikováno v:
Chemistry of Materials. 16:2895-2905
The oxycarbonate Sr 4 Fe 2 O 6 CO 3 has been revisited, using a new synthesis route. Its microstructure has been established by electron microscopy and evidences an orthorhombic-monoclinic distortion at 220 K. The latter is associated with a spin reo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c62f08e4ef4ca21fe31131ad465c0950
https://doi.org/10.1021/cm0401241
https://doi.org/10.1021/cm0401241
Autor:
F. Bouree, Bernard Raveau, Maryvonne Hervieu, Karel Knizek, Jiri Hejtmanek, Gilles André, Z. Jirak, C. Martin
Publikováno v:
Chemistry of Materials. 16:1104-1110
The perovskite manganites Pr 1-x Sr x MnO 3 in the region 0.45 ≤ x ≤ 0.75 exhibit two crystallographic modifications at room temperature-orthorhombic Ibmm and tetragonal I4/ mcm-with boundary situated at x ∼ 0.48. The high-temperature X-ray dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f53faea1c67389d8d6e3f3e6f808f74
https://doi.org/10.1021/cm034997r
https://doi.org/10.1021/cm034997r
Publikováno v:
Journal of Solid State Chemistry. 173:189-195
We report on an analysis of strain and crystallite size effects in mechanically alloyed PbTe. The evolution of the microstructure was monitored by Rietveld refinements of the neutron powder diffraction data collected at room temperature. For milling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::973748ad05c380bc9adcd3f24f95d4d9
https://doi.org/10.1016/s0022-4596(03)00017-3
https://doi.org/10.1016/s0022-4596(03)00017-3
Autor:
Frédéric Bernard, Nadine Millot, P. Perriat, B. L. Cheng, D. Aymes, A. Traverse, Jean-Claude Niepce, F. Bouree
Publikováno v:
Scopus-Elsevier
The bulk (Fe,Ti,O) phase diagram is strongly modified at the nanometer scale: instead of the mixture of the rhombohedral and pseudo-brookite phases normally present in the micrometer range, a single fcc phase is stabilized for grain size lower than 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4cb541512bc9fbfaa96614f34ab2e5fb
https://doi.org/10.1021/jp022312p
https://doi.org/10.1021/jp022312p
Autor:
C. Autret, Maryvonne Hervieu, C. Martin, Z. Jirak, Antoine Maignan, F. Bouree, Bernard Raveau, Gilles André
Publikováno v:
Chemistry of Materials. 15:1886-1896
The structural and magnetic transitions in the Pr0.5Sr0.5-xBaxMnO3 series have been investigated by neutron diffraction and electron microscopy, in connection with the transport and magnetic properties, allowing a new phase diagram (T, x, or ) to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099a3c158a9278f1d07df83cda782073
https://doi.org/10.1021/cm020474s
https://doi.org/10.1021/cm020474s
Publikováno v:
Journal of Physics: Condensed Matter. 13:6453-6470
Neutron powder diffraction data, collected over the temperature range 10-810 K, have been analysed in order to study the ferroelectric-paraelectric transition in the ferroelectric compound PbHf0.2Ti0.8O3. This transition appears at 670 K between the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59de8331e0b8f715cb6e1de5c167c9fb
https://doi.org/10.1088/0953-8984/13/30/302
https://doi.org/10.1088/0953-8984/13/30/302
Publikováno v:
Journal of Solid State Chemistry. 156:379-389
The structure of the lithium metavanadate LiVO 3 has been refined at room temperature from high-resolution neutron powder diffraction data. The unit cell dimensions are a =10.1597 (4) , b =8.4155 (3) , c =5.8843 (2) A, β =110.505° (2) , and V =471.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::940e52505a01b1ed6048cdad1f1be985
https://doi.org/10.1006/jssc.2000.9009
https://doi.org/10.1006/jssc.2000.9009
Publikováno v:
Solid State Ionics. 132:63-69
Nickel zinc manganite Mn 2.35− x Ni 0.65 Zn x O 4 powders were investigated by X-ray and neutron diffraction experiments. The variation of the cell parameters determined from X-ray data was used to get an estimate of the cationic distribution. Neut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f84e0052df6c85feeb3e26f60f5f4e2
https://doi.org/10.1016/s0167-2738(00)00728-1
https://doi.org/10.1016/s0167-2738(00)00728-1
Publikováno v:
Philosophical Magazine A. 79:847-858
The structure of lead hafnate has been accurately determined at 10 K and at room temperature by two different diffraction methods: neutron powder and electron diffraction. Results from the two methods are in good agreement. The structure is shown to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25b76a6022ace2915321f65cd5af30f5
https://doi.org/10.1080/01418619908210335
https://doi.org/10.1080/01418619908210335