An overview of double perovskites A2B′B″O6 with small ions at A site: Synthesis, structure and magnetic properties

Hossain, Aslam; Bandyopadhyay, Prasanta; Roy, Sanϳay

doi:10.1016/j.jallcom.2017.12.282

Cited by 148 publications

(76 citation statements)

References 110 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These materials have been investigated previously but the reported structural models show discrepancies e.g. in the B-O bond distances derived from different diffraction techniques [1,2,4]. It has often been possible to only obtain accurate positions for the rare earth ions which could be due to both the low scattering power of oxygen compared to the lanthanide and the inability of the XRPD technique to distinguish between the two different B ions due to their similar scattering factors.…”

Section: Discussionmentioning

confidence: 99%

“…The A 2 BʹB″O 6 double perovskites (A: rare earth; Bʹ and B″: magnetic cations such as Mn, Fe, Co, or Ni) display crosscorrelated structural, electronic and magnetic properties owing to the strong coupling of spin, charge, orbital and lattice degrees of freedom in these materials [1][2][3][4]. As a result, these transition metal oxides exhibit rich electronic phase diagrams, suggesting novel functionalities and industrial relevance.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, rare earth double perovskites R 2 MMnO 6 (M being Ni or Co) have attracted widespread attention due to their rich physical properties, showing a complicated interplay between electric and magnetic properties [1][2][3][4][5][6][7][8][9][10][28][29][30][31]. However, in contrast to the extensively investigated La 2 CoMnO 6 compound, less consideration has been given to other perovskite manganites such as R 2 MMnO 6 (R = Dy and Gd) [32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…as A-cation due to their large magnetic moment [28,[31][32][33][34][35]. A few studies have attempted to correlate the changes in structure with the variations in the nature of magnetic ordering in these compounds [1,2,4,8]. However, no systematic investigation of the evolution of the crystal structure from high temperatures to low temperatures through the magnetic phase transitions have been reported.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Temperature-dependent structural and magnetic properties of R2MMnO6 double perovskites (R = Dy, Gd; M = Ni, Co)

Иванов

Andersson

Cedervall

et al. 2018

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

The structural and magnetic properties of the Dy 2 CoMnO 6 , Dy 2 NiMnO 6 and Gd 2 CoMnO 6 double perovskites are investigated using X-ray powder diffraction and squid magnetometry. The materials adopt an orthorhombic structure (space ground Pnma) with disordered Co(Ni)/Mn cations, and exhibit ferrimagnetic transitions near T C ~ 85, 95, and 115 K respectively. T C was found to monotonously depend on the orthorhombic distortion (a − c)/(a + c) of the compounds. The crystal structure of the compounds was investigated as a function of temperature (16-1100 K range), evidencing changes in the BO 6 octahedron near T C . The magnetic entropy changes are estimated for comparison of the magnetocaloric properties to those from literature.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temperature-dependent structural and magnetic properties of R2MMnO6 double perovskites (R = Dy, Gd; M = Ni, Co)

Иванов

Andersson

Cedervall

et al. 2018

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…In double perovskites, it is possible to doped at A-site or B-site but as reported by Aslam.H, since A-site mostly occupied by unusual-metals like transition metals that gives strong and magnetic interactions and technical applications. By controlling the size of the A and B-site cation, the crystal structures and physical properties of these materials can be effectively manipulated [10]. It was reported that the for Te-based compounds, SrLaLiTeO 6 and BaLaLiTeO 6 adopted tetragonal and monoclinic configuration respectively with both has tolerance factor lower than 1.…”

Section: Fig 1: the Ideal Perovskite Structurementioning

confidence: 99%

Structural and Optical Properties of Sm3+ Doped B-site Ba0.5Rb0.5LaTeO6 Double Perovskites

Mohamed*,

Abdullah,

Halizan

et al. 2019

IJRTE

View full text Add to dashboard Cite

A double perovskites Ba0.5Rb0.5LaTeO6 and Ba0.5Rb0.5La0.9Sm0.1TeO6 were synthesized by a solid-state reaction method. The structural properties were studied by using the X-Ray powder diffraction (XRD) and fourier transform infrared spectroscopy (FTIR). Structural analysis of XRD based on Rietveld refinement indicates that the Ba0.5Rb0.5LaTeO6 and Ba0.5Rb0.5La0.9Sm0.1TeO6 have cubic symmetry with space group Fm m. The tolerance factor of the sample also decreases with Sm3+ substitution. The value obtained from tolerance factor for Ba0.5Rb0.5LaTeO6 and Ba0.5Rb0.5La0.9Sm0.1TeO6 was 0.994 and 0.982 respectively. The optical properties were studied using the UV visible absorption spectroscopy (UV-vis). The Ba0.5Rb0.5LaTeO6 and Ba0.5Rb0.5La0.9Sm0.1TeO6 was assumed to be indirect band gap and the optical band gap obtained for Ba0.5Rb0.5LaTeO6 and Ba0.5Rb0.5La0.9Sm0.1TeO6 were 4.1 eV and 4.3 eV respectively

show abstract

A Potential Checkmate to Lead: Bismuth in Organometal Halide Perovskites, Structure, Properties, and Applications

Attique

Ali

et al. 2020

Advanced Science

View full text Add to dashboard Cite

The remarkable optoelectronic properties and considerable performance of the organo lead‐halide perovskites (PVKs) in various optoelectronic applications grasp tremendous scientific attention. However, the existence of the toxic lead in these compounds is threatening human health and remains a major concern in the way of their commercialization. To address this issue, numerous nontoxic alternatives have been reported. Among these alternatives, bismuth‐based PVKs have emerged as a promising substitute because of similar optoelectronic properties and extended environmental stability. This work communicates briefly about the possible lead‐alternatives and explores bismuth‐based perovskites comprehensively, in terms of their structures, optoelectronic properties, and applications. A brief description of lead‐toxification is provided and the possible Pb‐alternatives from the periodic table are scrutinized. Then, the classification and crystal structures of various Bi‐based perovskites are elaborated on. Detailed optoelectronic properties of Bi‐based perovskites are also described and their optoelectronic applications are abridged. The overall photovoltaic applications along with device characteristics (i.e., V OC , J SC , fill factor, FF, and power conversion efficiency, PCE), fabrication method, device architecture, and operational stability are also summarized. Finally, a conclusion is drawn where a brief outlook highlights the challenges that hamper the future progress of Bi‐based optoelectronic devices and suggestions for future directions are provided.

show abstract

An overview of double perovskites A2B′B″O6 with small ions at A site: Synthesis, structure and magnetic properties

Cited by 148 publications

References 110 publications

Temperature-dependent structural and magnetic properties of R2MMnO6 double perovskites (R = Dy, Gd; M = Ni, Co)

Temperature-dependent structural and magnetic properties of R2MMnO6 double perovskites (R = Dy, Gd; M = Ni, Co)

Structural and Optical Properties of Sm3+ Doped B-site Ba0.5Rb0.5LaTeO6 Double Perovskites

A Potential Checkmate to Lead: Bismuth in Organometal Halide Perovskites, Structure, Properties, and Applications

Contact Info

Product

Resources

About