Synthesis, structure and phase separation of a new 12R-type perovskite-related oxide Ba3NdMn2O9

Yang, Huai; Tang, Yan-kun; Yao, Liming; Zhang, W.; Li, Q.A.; Li, F.Y.; Chen, Jin; Yu, Richeng

doi:10.1016/j.jallcom.2006.05.117

Cited by 16 publications

(7 citation statements)

References 17 publications

(20 reference statements)

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“…Many doped BaMn 1− x M x O 3 systems have been explored, for example, with M = Ti, Ca, , Ir, rare earths, − In, , Co, , Ru, and Fe . This led to the discovery of a new series of M cation ordered 10H perovskites Ba 5 In 0.93 Mn 4 O 14.40 and Ba 5 Sn 1.1 Mn 3.9 O 15 , which contain one corner-sharing M O 6 octahedron and a tetramer of four face-sharing MnO 6 octahedra.…”

Section: Introductionmentioning

confidence: 99%

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ

Yin

Kockelmann

et al. 2010

Chem. Mater.

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A 10-layer hexagonal perovskite Ba5Sb1−x Mn4+x O15−δ solid solution (0.24 ≤ x ≤ 0.36; space group P63/mmc, a = 5.7095(1) Å, and c = 23.4866(3) Å for x = 0.36) has been synthesized by solid state reaction and studied using powder X-ray and neutron diffraction and magnetization measurements. This 10H polytype structure contains one corner-sharing (Sb,Mn)O6 octahedron and a tetramer of four face-sharing MnO6 octahedra per formula unit. Two magnetic transitions are observed at 129−167 K (T M) and 13−22 K (T F). The frustration index |θ|/T M, where θ is the Weiss temperature, is very close to unity, but considerable magnetic frustration is evidenced through the long-range order of a small ∼0.5 μB antiferromagnetic moment below T M, and the formation of ferro- or ferrimagnetic clusters. These freeze at T F with the |θ|/T F ≈ 7−10 index representing high magnetic frustration. T F increases directly with the excess of Mn, x, in Ba5Sb1−x Mn4+x O15−δ rather than with the overall Mn content, showing that the occupation of the corner-sharing Sb/Mn sites is key to the extended magnetism.

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Section: Introductionmentioning

confidence: 99%

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ

Yin

Kockelmann

et al. 2010

Chem. Mater.

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“…In the literature, stoichiometric and oxygendeficient polytypes were discussed for several perovskites or perovskite-related oxides. [76][77][78] A first set of experiments with a transmission electron microscope equipped with a Super-X EDX system for atomic resolution EDX was carried out to study the chemical composition with atomic resolution (see Fig. S6 in the supplementary material).…”

Section: Journal Of Applied Physicsmentioning

confidence: 99%

(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 thin films prepared by PLD: Relaxor properties and complex microstructure

Piorra

Hrkac

Wolff

et al. 2019

Journal of Applied Physics

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Ferroelectric lead-free thin films of the composition (Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 (BCZT) were deposited by pulsed laser deposition on Pt/TiO 2 /SiO 2 /Si substrates using a ceramic BCZT target prepared by a conventional solid state reaction. The target material itself shows a piezoelectric coefficient of d 33 = 640 pm/V. The (111) textured thin films possess a thickness of up to 1.1 μm and exhibit a clamped piezoelectric response d 33,f of up to 190 pm/V, a dielectric coefficient of ε r = 2000 at room temperature, and a pronounced relaxor behavior. As indicated by transmission electron microscopy, the thin films are composed of longitudinal micrometersized columns with ∼100 nm lateral dimension that are separated at twin-and antiphase boundaries. The superposition phenomena according to this columnar growth were simulated based on suitable supercells. The major structural component is described as a tetragonal distorted variant of the perovskite parent type; however, frequently coherently intergrown nanodomains were observed indicating a much more complex structure that is characterized by a 7-layer modulation along the growth direction of the films.

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“…A modulated structure is a kind of periodic structure which can be divided into commensurately modulated structure and incommensurately modulated structure (IMS) ( van Smaalen, 2007). According to previous studies (Wang et al, 2018;Yang et al, 2007), an IMS can be described in four-dimensional space represented by a modulation wavevector q. In addition, IMSs are often observed in alloys (Yan et al, 2015;Chulist et al, 2010) and compound materials (Onozuka et al, 2000;Wei et al, 2011;van Aalst et al, 1976;Zhao et al, 2015;Righi et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Incommensurately modulated structure zone in α-Zr instigated by the drag force on a grain boundary

Zhang

Yuan

et al. 2021

J Appl Cryst

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Among several microstructural features found in deformed Zircaloy-4 alloy, the formation of incommensurately modulated structure (IMS) has not been studied extensively. In this study, an IMS zone in the α-Zr matrix of forged Zircaloy-4 alloy was investigated by transmission electron microscopy and related techniques. The results revealed a new intensity sequence along the (011 2) and (0113) planes, implying that an IMS was formed adjacent to a second phase particle (SPP) located at a grain boundary (GB) in the α-Zr matrix. The GB experienced maximum dragging force parallel to the [0110] direction of the α-Zr matrix, resulting in the formation of the IMS zone in the α-Zr matrix adjacent to the SPP.

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Synthesis, structure and phase separation of a new 12R-type perovskite-related oxide Ba3NdMn2O9

Cited by 16 publications

References 17 publications

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ

(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 thin films prepared by PLD: Relaxor properties and complex microstructure

Incommensurately modulated structure zone in α-Zr instigated by the drag force on a grain boundary

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Synthesis, structure and phase separation of a new 12R-type perovskite-related oxide Ba3NdMn2O9

Cited by 16 publications

References 17 publications

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba5Sb1−xMn4+xO15−δ

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba5Sb1−xMn4+xO15−δ

(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 thin films prepared by PLD: Relaxor properties and complex microstructure

Incommensurately modulated structure zone in α-Zr instigated by the drag force on a grain boundary

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Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ

Frustrated and Unfrustrated Magnetic Orders in the 10H Perovskite Ba₅Sb_1−xMn_4+xO_15−δ