Synthesis and Characterization of Fe and Ni Co-Doped Ba0.6Sr0.4Tio3Prepared by Sol-Gel Technique

Shaban, Naghi; Bahar, Mahmood

doi:10.4172/2376-130x.1000157

Cited by 12 publications

(1 citation statement)

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“…These materials are highly desirable for a Se 4+ and Mo 6+ co-doped BST (Ba 0.6 Sr 0.4 TiO 3 ) by slow injection sol-gel approach and their results revealed a reduction in the tangent loss but an enhancement in the average crystallite size and dielectric constant of the perovskite material. Numerous other studies have been documented regarding the co-doping of BST which include (Mg 2+ and K + ) co-doped BST [40], (La 3+ and Sb 3+ ) co-doped BST [37], and (Ni 2+ and Fe 3+ ) co-doped BST [41]. Researchers have gone through multiple techniques to synthesize the pure and co-doped BST which include the citrate-nitrate combustion method [42], sol-gel method [27], metal-organic solution deposition process [43], and conventional SSR (solid-state reaction) procedure [28].…”

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confidence: 99%

Enhanced structural, magnetodielectric, and multiferroic response in Fe and Co Co-doped Barium strontium titanate ceramics

Khan,

Goel,

Gupta

et al. 2024

Phys. Scr.

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In this paper, the ambient temperature multiferroic effect resulting from the incorporation of transition metal ions (Fe3+ and Co2+) in lead-free BST[Ba0.7Sr0.3(Fex/2Cox/2)Ti1-xO3; x= 0, 0.01, 0.03, 0.05, 0.07] ceramics synthesized via the solid-state reaction (SSR) procedure has been thoroughly analyzed. The investigation consistently scrutinized the effects of augmenting transition metal co-doping on the structural, ferroelectric, dielectric, magnetic, and magnetodielectric characteristics. The X-ray diffraction (XRD) patterns for all ceramic compositions demonstrated the formation of a monophasic (P4mm) crystalline structure. The Raman analysis evidenced the presence of various modes, which are associated with the occurrence of the single-phase and provide strong corroboration for the X-ray diffraction observations. Scanning electron micrographs reveals that the inclusion of transition metal ions results in the diminution of grain size. The frequency-dependent dielectric characteristics were represented over the frequency range of 1 kHz to 1 MHz. The P-E hysteresis curves demonstrate a consistent reduction in the values of Ps and Pr, whereas, the M-H curve reveals the enhancement in magnetic properties with increased doping. The magnetodielectric analysis confirmed the interplay between the ferroelectric and ferromagnetic ordering. The BST-1CF sample exhibited the highest MC % value of 5.30 % along with the magnetoelectric coupling coefficient 'γ' of - 6.01×10^-1 (memu/g)^-2, making it a favorable entrant for the advancement of innovative non-volatile multiferroic memory gadgets.

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