Structure and polytypic faults in Ba4NdMn3O12 compound

Yang, Huai; Cao, Z. E.; Shen, Xi; Feng, Wangjun; Jiang, Jizhou; Dai, Jian; Yu, Richeng

doi:10.1007/s10853-008-2798-4

Cited by 6 publications

(5 citation statements)

References 22 publications

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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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“…The specimens as reported in Ref. [10] were fabricated from the casting for tensile and creep tests. In addition, in order to obtain the solutionized temperature of the experimental alloys, Differential scanning calorimetry (DSC) was also carried out using a NETZSCH STA 449C system.…”

Section: Methodsmentioning

confidence: 99%

Effects of Sb Addition on Heat-Treated Microstructure and Mechanical Properties of AZ61-0.7Si Magnesium Alloy

Yang

Cheng

et al. 2012

AMM

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In this paper, the effects of Sb addition on heat-treated microstructure and mechanical properties of AZ61-0.7Si magnesium alloy were investigated. The results indicate that the solution heat treatment can modify the Chinese script shaped Mg2Si phase in the AZ61-0.7Si alloy. After solutionized at 420°C, the morphology of the Mg2Si phase in the AZ61-0.7Si alloy changes from the Chinese script shape to the short pole and block shapes, and the higher modification efficiency could be obtained for the alloy with the addition of 0.4 wt.%Sb. In addition, the effect of the solution heat treatment on the morphology of the Mg2Si phase can also result in the improvement of tensile and creep properties for the AZ61-0.7Si alloy. After solutionized at 420°C for 24h and followed by aging treatment at 200°C for 12h, the AZ61-0.7Si alloy exhibits higher tensile and creep properties than that of the as-cast alloy, and the properties improvement resulted from heat treatment, is more obvious for the AZ61-0.7Si alloy with the addition of 0.4 wt.%Sb.

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“…Many doped BaM x Mn 1Àx O 3 systems have been explored, for example, with M ¼ Ca, 6,7 Ti, 8,9 Fe, 10,11 Co, 12,13 Ru, 14,15 Ir, 16 In, 17,18 and rare earths Ln. [19][20][21][22][23] This led to the discovery of a range of Mcation ordered 10H perovskites Ba 5 26 The Ba 5 MMn 4 O 15 10H perovskite structure consists of close packed BaO 3 layers in a (cchhh) 2 sequence. The large M ions occupy the corner-sharing octahedral centre M1, and the Mn ions sit on the face-sharing octahedral centres M2 and M3, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…The BaLn x Mn 1Àx O 3 system contains several cation-ordered perovskites: 6H Ba 3 LnMn 2 O 9 and 12R Ba 4 LnMn 3 O 12 (Ln ¼ Er, Ce, Pr, and Nd). [20][21][22][23]27 The 6H and 12R polytypes feature dimers and trimers of face-sharing MnO 6 octahedra respectively, 23,27 alternating with LnO 6 octahedra. The 6H and 12R perovskites are closely related to the 10H perovskite.…”

Section: Introductionmentioning

confidence: 99%

New 10H perovskites Ba₅Ln_1−xMn_4+yO_15−δ with spin glass behaviour

Yin

Tian

et al. 2017

RSC Adv.

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Structure and polytypic faults in Ba4NdMn3O12 compound

Cited by 6 publications

References 22 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

Effects of Sb Addition on Heat-Treated Microstructure and Mechanical Properties of AZ61-0.7Si Magnesium Alloy

New 10H perovskites Ba₅Ln_1−xMn_4+yO_15−δ with spin glass behaviour

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Structure and polytypic faults in Ba4NdMn3O12 compound

Cited by 6 publications

References 22 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

Effects of Sb Addition on Heat-Treated Microstructure and Mechanical Properties of AZ61-0.7Si Magnesium Alloy

New 10H perovskites Ba5Ln1−xMn4+yO15−δ with spin glass behaviour

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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

New 10H perovskites Ba₅Ln_1−xMn_4+yO_15−δ with spin glass behaviour