Rare Examples of Fluoride-Based Multiferroic Materials in Mn-substituted BaMgF4 Systems: Experimental and Theoretical Studies

Efficient energy transfer from Ce3+ to Tb3+ in BaF2: green-emitting phosphors for potential applications in the detection of Cu2+ ions

A succession of Ce³⁺ and Tb³⁺ co-doped BaF₂ nanoparticles were synthesized by co-precipitation and hydrothermal methods.

Facile synthesis, morphology and tunable photoluminescence properties of BaMgF4:Ce3+/Tb3+/Eu3+ phosphors

A series of BaMgF₄:Ce³⁺/Tb³⁺/Eu³⁺ phosphors were successfully prepared via a facile hydrothermal process.

The quest towards epitaxial BaMgF4 thin films: exploring MOCVD as a chemical scalable approach for the deposition of complex metal fluoride films

Conventional and Pulsed Liquid Injection MOCVD processes (C-MOCVD and PLI-MOCVD) have been explored as synthetic routes for the growth of BaMgF₄ on Si (100) and single crystalline SrTiO₃ (100) substrates. For the two applied approaches, the volatile, thermally stable β-diketonate complexes Ba(hfa)₂tetraglyme and Mg(hfa)₂(diglyme)₂(H₂O)₂ have been used as single precursors (C-MOCVD) or as a solution multimetal source (PLI-MOCVD). Structural characterization through X-ray diffraction (XRD) measurements and transmission electron microscopy (TEM) analyses confirmed the formation of epitaxial BaMgF₄ films on SrTiO₃ substrates. Energy dispersive X-ray (EDX) analyses have been used to confirm composition and purity of deposited films. The impact of process parameters on film properties has been addressed, highlighting the strong influence of precursor ratio, deposition temperature and oxygen partial pressure on composition, microstructure and morphology of the films. Both methods appear well suited for the growth of the BaMgF₄ phase, but while PLI-MOCVD yields a more straightforward control of the precursor composition that reflects on film stoichiometry, C-MOCVD provides easier control of the degree of texturing as a function of temperature.

Enhancement of dielectric, ferroelectric and magneto-dielectric properties in PVDF–BaFe12O19 composites: a step towards miniaturizated electronic devices

Appreciable increase in the dielectric permittivity in PVDF has been achieved in BaFe₁₂O₁₉ composites.

Dielectric and ferroelectric behavior of an incipient ferroelectric Sr(1−3x/2)CexTiO3 novel solid solution

Phase formation, chemical structure, microwave (MW) dielectric properties, and relaxor-to-ferroelectric phase transition behavior of a novel Sr_(1−3x/2)CexTiO₃ solid solution ceramic sintered in nitrogen have been investigated.

A computer study and photoelectric property analysis of potassium-doped lithium niobate single crystals

First-principles theory was used to design a potassium-doped lithium niobate single crystal. The structural, electronic, optical and ferroelectric properties of the potassium-doped LiNbO3 single crystal model have been investigated using a generalized gradient approximation within density functional theory. It was found that substitution with potassium drastically changed the optical and electronic nature of the crystal and that the band gap slightly decreases. A series of LiNbO3 single crystals doped with x mol% K (x = 0, 3, 6, 9, 12 mol%) were successfully grown using the Czochralski method. The crystals were characterized using powder X-ray diffraction, UV-vis-infrared absorption spectroscopy and a ferroelectric property test. The experimental test results were consistent with the calculated predictions.