Crystal growth of La2NaTaO6: A new monoclinically distorted double perovskite

Crystal growth of a series of lithium garnets Ln3Li5Ta2O12 (Ln=La, Pr, Nd): Structural properties, Alexandrite effect and unusual ionic conductivity

“…Hydroxide fluxes are an excellent medium for the dissolution of lanthanide oxides, late transition metals, such as iridium [2,4], ruthenium [1,3] and, as recently demonstrated, early transition metal oxides, such as niobium and tantalum oxide [5][6][7]. In our investigation to prepare mixed lanthanide/early transition metal oxides, we obtained single crystals of a series of lanthanum containing tantalates with nominal formula Ln 3 Li 5 Ta 2 O 12 (Ln ¼ La, Pr, Nd).…”

Syntheses and Crystal Structures of the Compounds NaLnTiO4 (Ln = La, Pr, Nd)

“…We have had much success in the growth of complex oxides incorporating both a rare-earth and a platinum group metal (Ru, Os, Rh, Ir, Pd, and Pt) from molten alkali/alkaline earth hydroxides [2]. More recently, similar results have been obtained for early transition metals, such as Nb and Ta [3][4][5][6][7][8], and now we have extended the crystal growth chemistry to Ti with the current NaLnTiO 4 (Ln = La, Pr, Nd) compounds.…”

Crystal growth and twinned crystal structure of Sr2CaWO6

“…Unfortunately the structural studies of these materials usually combine a low sensitivity of X-rays to the positions of the O atoms (masked by the presence of heavy cations) with high pseudosymmetry, strong absorption for X-rays, and (in some cases) disorder of B cations and/or oxygen deficiency. An additional difficulty for the accurate structural determination and the study of their physical properties lies in the fact that single crystals of these compounds have rarely been grown, until the last few years 1 (see Table 1) when a research group has focused on the singlecrystal growth of lanthanide (Davis et al, 2004;Gemmill, Smith & zur Loye, 2004;Gemmill et al, 2005;Mugavero, Smith & zur Loye, 2005;Stitzer, Smith & zur Loye, 2002;Mugavero III et al, 2003), tantalum (Roof et al, 2008) and rhenium (Bharathy & zur Loye, 2008) oxides in an effort to investigate both the structural chemistry and the magnetic properties of such compounds. These authors have developed an effective synthetic approach employing molten hydroxide fluxes.…”