Zobrazeno 1 - 10
of 111
pro vyhledávání: '"L. Beaury"'
Publikováno v:
Journal of Solid State Chemistry. 177:1437-1443
Na2CoP2O7 is found in two allotropic forms. The first one is rose and belongs to the triclinic crystallographic system. The second one is blue and described in the orthorhombic system, space group Pna21, No. 33, with cell parameters a=15.378(6) A, b=
Publikováno v:
Solid State Sciences. 4:1039-1043
The paramagnetic susceptibility of polycrystalline hexagonal neodymium oxyfluoride, NdOF, shows an anomalous evolution as a function of temperature. To explain the anomalies, the crystal structure of NdOF was studied between 1.5 and 300 K by neutron
Publikováno v:
Journal of Alloys and Compounds. :460-467
The optical absorption spectra of neodymium at 4 K are reproduced with a very good agreement between calculation and experiment (15 −1 ). The wavefunctions which are obtained as a result of the energy calculation can be used to compute other physic
Publikováno v:
Journal of Alloys and Compounds. :242-253
The optical (energy level scheme) and magnetic properties (paramagnetic susceptibility as a function of temperature and g values) of Co 2+ in a Cs 2 ZnCl 4 single crystal were reproduced simultaneously according to the crystal field theory involving
Publikováno v:
Ultrasonics Sonochemistry. 7:25-33
Different kind of materials, as powders, were submitted to ultrasound after mixing in water, dodecane or dilute acetic acid (5%). After treatment, firstly a decrease of particle size, and secondly the formation of unexpected and unknown compounds was
Autor:
L. Beaury, A. El Jazouli, J. Derouet, R. Olazcuaga, G. Le Flem, A.El Bouari, Pierre Porcher, J. M. Dance
Publikováno v:
Journal of Solid State Chemistry. 143:230-238
The optical (energy level scheme) and magnetic properties (paramagnetic susceptibility as a function of the temperature and g values) of the polycrystalline Co 0.5 Ti 2 (PO 4 ) 3 were simultaneously reproduced by use of a crystal field theory involvi
Autor:
Pierre Porcher, A.El Bouari, G. Le Flem, L. Beaury, R. Olazcuaga, J. M. Dance, J. Derouet, A. El Jazouli
Publikováno v:
Journal of Solid State Chemistry. 143:224-229
A new cobalt titanium monophosphate has been prepared by low temperature method. It crystallizes with the Nasicon-type structure. The indexation of the X-ray diffraction pattern is consistent with theR 3 or theR32 space groups. The atomic arrangement
Publikováno v:
Journal of Alloys and Compounds. :646-650
The high-resolution X-ray powder diffraction patterns on the polycrystalline NdOF were measured at selected temperatures between 6 and 295 K. The hexagonal unit cell constants a and c first decrease as a function of temperature as anticipated down to
Publikováno v:
Journal of Alloys and Compounds. 250:336-341
Measurements and simulation of the Zeeman effect in NdOCl and 1%Nd 3+ :LiYF 4 single crystals were carried out. The rare earth local symmetries are C 4v and D 2d respectively. The isomorphism between these two point groups allows discussion on symmet
Autor:
Eija Säilynoja, Jorma Hölsä, J.-C. Krupa, Joni Korventausta, Hanna Rahiala, Ralf-Johan Lamminmäki, P. Porcher, L. Beaury
Publikováno v:
Acta Physica Polonica A. 90:1203-1213