New nonmagnetic aliovalent dopants (Li+, Cu2+, In3+ and Ti4+): optical and strong intrinsic room temperature ferromagnetism of perovskite BaSnO3

W Sharmoukh, TA Hameed, SM Yakout - Journal of Alloys and Compounds, 2022 - Elsevier
Abstract Nonmagnetic Li+, Cu 2+, In 3+ and Ti 4+ ions were employed to induce robust room
temperature ferromagnetism in perovskite BaSnO 3 for advanced spintronics applications …

Study of reaction mechanism, structural, optical and oxygen vacancy-controlled luminescence properties of Eu-modified Sr2SnO4 Ruddlesden popper oxide

U Kumar, S Upadhyay, PA Alvi - Physica B: Condensed Matter, 2021 - Elsevier
Abstract Eu-doped Sr 2 SnO 4 samples were synthesized using conventional ceramic route,
followed by calcination at 1000° C. Rietveld refinement analysis of XRD data indicates that …

Irreversible magnetic behavior with temperature variation of Ni0. 5Co0. 5Fe2O4 nanoparticles

BL Choudhary, U Kumar, S Kumar, S Chander… - Journal of Magnetism …, 2020 - Elsevier
In this paper, the irreversible magnetic behavior of Ni 0.5 Co 0.5 Fe 2 O 4 nano-ferrite has
been discussed with varying the temperature. The nano-ferrite discussed in present work …

Rietveld refinement, optical, dielectric and ac conductivity studies of Ba-doped SrSnO3

A Kumar, B Khan, V Yadav, A Dixit, U Kumar… - Journal of Materials …, 2020 - Springer
Abstract The samples SrSnO 3 (SBS0) and Sr 0.98 Ba 0.02 SnO 3 (SBS2) were synthesized
using sol–gel route, followed by calcination at 1073 K. Rietveld refinement analysis of XRD …

Scaling studies of temperature dependence of electric conductivity and electric modulus spectra of solid solution Sr2-xLaxSnO4 (x≤ 0.10) Ruddlesden Popper Oxide

U Kumar, M Jatiya, MF Carrasco - Materials Research Bulletin, 2023 - Elsevier
The mixed ionic and electronic conductor oxide with formula Sr 2-x La x SnO 4 (S2LS) within
x≤ 0.10 were synthesized via the conventional ceramic route and investigated. The …

Synthesis and physical properties of nanopowder and electrical properties of bulk samples of ZnFe2-xNixO4 (x: 0, 0.05, 0.10)

H Cheema, S Kumar, PA Alvi, BL Choudhary… - Advanced Powder …, 2020 - Elsevier
Abstract The Ni modified samples ZnFe 2-x Ni x O 4 with x= 0, 0.05, and 0.10 were
synthesized using the sol-gel combustion method at 60° C. The phase of obtained samples …

Investigation on phase formation of Sr2SnO4 and effect of La-doping on its structural and optical properties

U Kumar, D Yadav, AK Thakur, KK Srivastav… - Journal of Thermal …, 2019 - Springer
The reaction mechanism for the formation of Sr 2 SnO 4 by solid-state reaction between
SrCO 3 and SnO 2 has been investigated using thermal analysis (TG and DSC) combined …

Influence of La doping on structure, AC conductivity and impedance spectroscopy of Ba2SnO4 Ruddlesden Popper oxide

U Kumar, H Cheema, V Yadav, RS Maurya… - Materials Chemistry and …, 2021 - Elsevier
A few compositions of (Ba 1-x La x) 2 SnO 4 with 0≤ x≤ 0.10 have prepared via solid-state
ceramic route followed by calcination at 1000° C for 8 h. The preliminary phase of samples …

Investigating the structural and dielectric properties of CoFe2− xNixO4 spinel ferrite

GA Lone, M Ikram - Journal of Alloys and Compounds, 2022 - Elsevier
The present work reports the structural and dielectric properties of pristine and Ni-doped
spinel CoFe 2 O 4. To investigate the influence of doping on the structural and dielectric …

BaSn0. 96-XZr0. 04MXO3 (M= Mn, Fe or Co, x= 0, 0.02) for spin-based devices: Ferromagnetic properties

SM Yakout, AIA Elsharawy, MA Wahba… - Ceramics …, 2023 - Elsevier
In this study, Zr and/or Mn, Fe or Co ions were used to induce a robust room temperature
ferromagnetic nature in perovskite BaSnO 3 for high performance information applications …