• Aucun résultat trouvé

Structure, infrared and Raman spectroscopic studies of newly synthetic AII(SbV0.50FeIII0.50)(PO4)2 (A = Ba, Sr, Pb) phosphates with yavapaiite structure

N/A
N/A
Protected

Academic year: 2021

Partager "Structure, infrared and Raman spectroscopic studies of newly synthetic AII(SbV0.50FeIII0.50)(PO4)2 (A = Ba, Sr, Pb) phosphates with yavapaiite structure"

Copied!
43
0
0

Texte intégral

Loading

Figure

Table 3. Powder diffraction data of Ba(Sb 0.5 Fe 0.5 )(PO 4 ) 2  (CuKα 1  ; λ = 1.5406 Å)
Table 4. Ordered list of possible space groups obtained from the Check-Group program for Pb(Sb 0.5 Fe 0.5 )(PO 4 ) 2
Table 5. Results of the Rietveld refinement of Sr(Sb 0.5 Fe 0.5 )(PO 4 ) 2 .
Table 7. Selected interatomic distances and calculated Bond valence sum (BVS) for Sr(Sb 0.5 Fe 0.5 )(PO 4 ) 2
+4

Références

Documents relatifs

have been observed at room temperature in order to examine the modification in the incommensurate modulation wavevector by the substitution of lead. For transmission

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

Since it is probably the properties of CaIrO 3 at high temperatures that will be of most interest to earth scientists, we obtained linear and volumetric thermal expansion values

It thus appears that, even if future studies show that the non-ideality of the (Ba,Sr)SO 4 solid solution is larger than that of the simple regular model, effects of the non-ideality

However, these values have to be considered carefully, keeping in mind that, in fluorite related structures, cations have a cubic anionic environment of eight sites,

The in fl uence of bismuth coordination for the three orthorhombic (SrBiO 2 Cl, BaBiO 2 Cl, and BaBiO 2 Br) and the two monoclinic (CaBiO 2 Cl, CdBiO 2 Cl) compounds on the

Recent systematic studies of low temperature heat capacity of La system show the strong correlation between vanishing y T in the antiferromagnetic (-4F) state

Crystal structure of Ni-sorbed synthetic vernadite: A powder X-ray diffraction study.. Sylvain Grangeon, Bruno Lanson, Martine Lanson,