LnSrScO4 (Ln=La, Ce, Pr, Nd and Sm) systems and structure correlations for A2BO4 (K2NiF4) structure types

Patel, Rina; Simon, Charles; Weller, Mark T.

doi:10.1016/j.jssc.2006.10.023

Cited by 27 publications

(20 citation statements)

References 14 publications

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“…A large number of papers, both on the subject of analysis of the activation temperature in sintering and inelastic deformation of materials [139,140] and on that of the analysis of solidphase reaction mechanisms [141][142][143][144][145][146][147][148][149][150][151], show that all these solid-phase processes start in the systems only after the nonautonomous phase has transitioned to a liquid-like state, i.e., they are liquid-phase reactions in a sense, as stated in [75,78]. As another example, we can compare the findings from the study of Ruddlesden-Popper phase formation kinetics from different reagents [151][152][153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] with data on the values of some temperature transformations in the Ln 2 O 3 -SrO-Al 2 O 3 system [169][170][171][172][173], in which the compounds are formed that are promising for the production of functional and structural high-temperature materials [174][175][176][177]…”

Section: Status Of Nonautonomous Phases and Materials With The High Vmentioning

confidence: 98%

Flintstone as a nanocomposite material for photonics

Федоров¹,

Maslov²,

Voronov³

et al. 2018

Nanosystems: Phys. Chem. Math.

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The scope of the journal includes all areas of nano-sciences. Papers devoted to basic problems of physics, chemistry, material science and mathematics inspired by nanosystems investigations are welcomed. Both theoretical and experimental works concerning the properties and behavior of nanosystems, problems of its creation and application, mathematical methods of nanosystem studies are considered. The journal publishes scientific reviews (up to 30 journal pages), research papers (up to 15 pages) and letters (up to 5 pages). All manuscripts are peer-reviewed. Authors are informed about the referee opinion and the Editorial decision.

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Section: Status Of Nonautonomous Phases and Materials With The High Vmentioning

confidence: 98%

Flintstone as a nanocomposite material for photonics

Федоров¹,

Maslov²,

Voronov³

et al. 2018

Nanosystems: Phys. Chem. Math.

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“…28 In this work, we only consider the tetragonal nickel carbides A 2 CNi 4 . We chose the A-site elements corresponding to the following rules: (a) The metal elements usually existing in the real antiperovskites ACM 3 ; and (b) Generally speaking, the magnetic elements are harmful for conventional superconductivity, so A-site elements should be non-magnetic.…”

Section: Computational Detailsmentioning

confidence: 99%

“…For the known A 2 XM 4 compounds, in distorted structures, the t factor changes in 0.8 ≤ t ≤ 0.9068, and in tetragonal structure, the t factor changes in 0.9068 ≤ t ≤ 1. 28 The empirical t factor takes into account the structural properties of the crystals if the size of octahedral voids in the close-packed AM 3 array is sufficient for embedding X atoms.…”

Section: Structural Criterion Analysismentioning

confidence: 99%

First-principles prediction of layered antiperovskite superconductors A2CNi4 (A = Al, Ga, and Sn)

Shao

Lin

et al. 2012

AIP Advances

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We theoretically designed and investigated the layered antiperovskite nickel carbides A2CNi4 with different A-site elements by using the first-principles calculation based on density functional theory (DFT). The calculated formation energies for a series of A-site elements show that Al2CNi4, Ga2CNi4, and Sn2CNi4 are stable and can be synthesized at ambient pressure. The elastic properties and electronic band structures were calculated and discussed. Similar to the superconducting MgCNi3, the three stable compounds show the non-magnetic ground states. The density of states at Fermi level N(EF), dominated by Ni-3d electrons, can be comparable with the N(EF) of MgCNi3. The electron and hole bands cross the Fermi level, indicating the multiple-band nature for A2CNi4 (A = Al, Ga, and Sn). Using the McMillan's formula, we approximately estimated the superconducting parameters such as electron-phonon coupling constants λ and superconducting transition temperatures TC. Our present results show that the layered antiperovskite nickel carbides A2CNi4 (A = Al, Ga, and Sn) may be potential weak-coupling superconductors with TC about 5∼7 K

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“…7,8 The members of this series may be visualized as consisting of perovskite blocks, with n BO 6 octahedra arranged along the c-axis, separated by AO layers. While the n = 1 member of this series (A 2 BO 4 ) exhibits a quasi-twodimensional K 2 NiF 4 -type structure with only one layer of corner-sharing BO 6 octahedra along the c direction, the compound ABO 3 , which corresponds to the n = 1 member of this series, assumes the threedimensional perovskite structure. In the second member of the RP family, A 3 B 2 O 7 , two infinite BO 6 sheets are connected in the c direction between rocksalt layers.…”

Section: Introductionmentioning

confidence: 99%

Study of Structural, Electrical, and Magnetic Properties of Layered Perovskite Oxides LnSr2TiFeO7 (Ln = Nd, Gd)

Singh

2011

Journal of Elec Materi

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We report here the synthesis and results of electrical resistivity and magnetic susceptibility measurements in the low temperature range of the rare-earthdoped bilayered system LnSr 2 TiFeO 7 (Ln = Nd, Gd). Both phases crystallize with a tetragonal unit cell in space group I4/mmm. The phases exhibit insulating behavior, and the electrical transport mechanism agrees with the Mott variable-range hopping model. The decrease in electrical resistivity with decreasing ionic size of the rare-earth ion could be attributed to enhancement of the three-dimensional (3D) character along the c-axis because of the proximity of the (Ti/Fe)O 2 and (Ln,Sr)O layers along the c-axis. The magnetic studies suggest that the phases are antiferromagnetic and the antiferromagnetic behavior could be due to the Fe 3+ -O-Fe 3+ exchange interaction.

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LnSrScO4 (Ln=La, Ce, Pr, Nd and Sm) systems and structure correlations for A2BO4 (K2NiF4) structure types

Cited by 27 publications

References 14 publications

Flintstone as a nanocomposite material for photonics

Flintstone as a nanocomposite material for photonics

First-principles prediction of layered antiperovskite superconductors A2CNi4 (A = Al, Ga, and Sn)

Study of Structural, Electrical, and Magnetic Properties of Layered Perovskite Oxides LnSr2TiFeO7 (Ln = Nd, Gd)

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