A structural study of the CaLn2CuTi2O9 (Ln=Pr, Nd, Sm) and BaLn2CuTi2O9 (Ln=La, Pr, Nd) triple perovskite series

Iturbe‐Zabalo, E.; Igartua, J. M.; Aatiq, Abderrahim; Pomjakushin, Vladimir

doi:10.1016/j.molstruc.2012.08.049

Cited by 4 publications

(2 citation statements)

References 36 publications

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“…Recently, interest in analyzing structural phase transitions from the symmetry-adapted modes point of view has increased [1][2][3][4][5][6][7]. The structure of many materials can be seen as the result of a distortion with respect to a configuration of higher symmetry.…”

Section: Introductionmentioning

confidence: 99%

Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis

Iturbe‐Zabalo¹,

Igartua²,

Larrañaga³

et al. 2013

J. Phys.: Condens. Matter

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Powder SrPrZnRuO6, SrPrCoRuO6, SrPrMgRuO6 and SrPrNiRuO6 double perovskites were synthesized by the solid-state reaction method, and their crystal structure was investigated by Rietveld analysis (using the symmetry-mode procedure) by x-ray, synchrotron and neutron powder diffraction data. SrPrMRuO6 materials are monoclinic perovskites at room temperature, adopting the space group P21/n, [Formula: see text], c ≈ 2ap, Z = 2. The unit cell parameters increase through the series as the B-cation size increases. The tilting of the octahedra is associated with irreducible representations GM(+)4 and X(+)3. In the studied series, Sr(2+)/Pr(3+) are in eight-fold coordination and are displaced from the center of the Sr/PrO8 polyhedron along [010] by the X(+)5(A10) mode. The size of the first coordination sphere of Sr/Pr increases and the second coordination sphere reduces with temperature, suggesting an actual change in coordination. While changing the interatomic distances, the distortion of the structure diminishes, as observed in distortion mode amplitudes and octahedral tilt angles. The temperature driven [Formula: see text] phase transition was observed for Ni and Mg materials at ≈1025 K and 950 K, respectively. Tilting of the octahedra in the trigonal phase is associated with GM(+)4, which is the unique active mode associated with the not experimentally observed [Formula: see text] phase transition.

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Section: Introductionmentioning

confidence: 99%

Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis

Iturbe‐Zabalo¹,

Igartua²,

Larrañaga³

et al. 2013

J. Phys.: Condens. Matter

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“…In our previous structural characterization study of [Ca1/3Ln2/3]A[Cu1/3Ti2/3]BO3 (Ln = Pr, Nd, Sm) and [Ca1/3Ln2/3]A[Zn1/3Ti2/3]BO3 (Ln = La, Pr, Nd, Eu) phases, some of us have shown the existence of a statistical cationic distribution within the A and B sites of the perovskite (Pbnm space group) 19,20 . As shown by the crystallographic formula, in all materials the rare earth cation occupied only the A sites.…”

Section: Introductionmentioning

confidence: 99%

Cationic distribution in the new Nd2CaSnO6 perovskite type phase

Boudar¹,

Aatiq²,

Bellefqih³

et al. 2019

Mediterr.J.Chem.,

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The new Nd2CaSnO6 double perovskite oxide has been synthesized in polycrystalline form by a conventional solid-state reactions process at 1300°C in air atmosphere. Structure refinement, realized by Rietveld analysis using the X-ray powder diffraction (XRD) data, shows that the compound crystallizes in monoclinic symmetry with P21/n space group and Z = 2. Obtained unit-cell parameters are: a = 5.6585(1) Å, b = 5.9254(1) Å, c = 8.1883(2) Å,  = 90.116(1) ° and V = 274.5(1) Å3 . The cationic distribution over the A- and B-sites of this perovskite structure can be illustrated by the [Nd1.90Ca0.10]A[Nd0.10Ca0.90]B’[Sn1.00]B’’O6 crystallographic formula. The monoclinic structural distortion involves long-range ordering between Sn4+ (in 2c site) and a random mixture (0.90Ca2+; 0.10Nd3+) (in 2d site) all at the B-perovskite sites.

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Chemistry and Physics of Triple Perovskite Oxides: A Topical Review

De,

Kurian,

Solaiappan

et al. 2024

Chem. Mater.

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Triple perovskites have garnered research interest in recent years because of their diverse physical properties. This review article delves into the significance of triple perovskite oxides, an important variant of ABO 3 -type perovskites. It provides a comprehensive overview of recent advancements in understanding these A 3 B 3 O 9 /A 3 BB 2 ′O 9 oxide materials, emphasizing their chemical structure and its interplay with diverse properties such as magnetic and electric behaviors. A new framework is proposed to distinguish these functional materials from the other perovskite variants. In addition, the article explores potential technical applications including renewable energy devices, thermistors, optoelectronics, and triboelectric nanogenerators within the perovskite family.

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A structural study of the CaLn2CuTi2O9 (Ln=Pr, Nd, Sm) and BaLn2CuTi2O9 (Ln=La, Pr, Nd) triple perovskite series

Cited by 4 publications

References 36 publications

Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis

Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis

Cationic distribution in the new Nd2CaSnO6 perovskite type phase

Chemistry and Physics of Triple Perovskite Oxides: A Topical Review

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A structural study of the CaLn2CuTi2O9 (Ln=Pr, Nd, Sm) and BaLn2CuTi2O9 (Ln=La, Pr, Nd) triple perovskite series

Cited by 4 publications

References 36 publications

Structural study of SrPrZnRuO6, SrPrCoRuO6, SrPrMgRuO6and SrPrNiRuO6double perovskite oxides by symmetry-adapted mode analysis

Structural study of SrPrZnRuO6, SrPrCoRuO6, SrPrMgRuO6and SrPrNiRuO6double perovskite oxides by symmetry-adapted mode analysis

Cationic distribution in the new Nd2CaSnO6 perovskite type phase

Chemistry and Physics of Triple Perovskite Oxides: A Topical Review

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Product

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Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis

Structural study of SrPrZnRuO₆, SrPrCoRuO₆, SrPrMgRuO₆and SrPrNiRuO₆double perovskite oxides by symmetry-adapted mode analysis