Synthesis and Properties of Lanthanum Sodium Manganate Perovskites Crystals

Growth and characterization of perovskite LaGaO3 crystals doped with Sr and Mn

“…It follows from the results that the b and c lattice parameters of La 1−x Sr x Ga 1−y Mn y O 3 crystals decrease, whereas a slightly increases resulting in decreasing orthorhombic unit cell volume that is related to increased amount of Mn and Sr in the melt. This result is consistent with lattice parameters changes in La 1−x Sr x GaO 3 crystals [6] and La 1−x Sr x MnO 3 [13]. Kuscer et al showed also that the volume for La 1−x Sr x MnO 3 at first increases as a consequence of cation vacancy disappearance, until x = 0.1.…”

Synthesis, structural and ferromagnetic properties of La1−x K x MnO3 (0·0 ≤ x ≤ 0·25) phases by solution combustion method

“…Monovalent ion-doped rare earth manganites of the general formula, Ln 1-x A x MnO 3 (Ln = La, Pr, Nd; A = Na, K, Rb), provide another series of oxides to study the physical phenomena of insulator-to-metal transition and colossal magnetoresistance (Itoh et al 1995;Shimura et al 1996;Chen and de Lozanne 1997;Ng-Lee et al 1997;Sahana et al 1997;Singh et al 1998). Alkali metal ion doped lanthanum manganites have been prepared by the conventional ceramic methods (Itoh et al 1995;Shimura et al 1996), alkali-flux method (Singh et al 1998;Shivakumara et al 2004) and fused salt electrolysis (McCarroll et al 1999).…”

Crystal growth and magnetic property of orthorhombic RMnO3 (R=Sm–Ho) perovskites by mild hydrothermal synthesis

“…Crystal growth of rare earth manganates is traditionally carried out by high-temperature floating zone methods employing image-arc furnace or by molten salt electrolysis [5][6][7]. In our laboratory, we have been using hydrothermal synthesis methods to grow good quality single crystals of various oxides at relatively lower temperature compared to either floating zone or molten salt electrolysis methods [8][9][10][11].…”