Effects of neodymium substitution on the structural, optical, and magnetic properties of yttrium iron garnet nanoparticles

Fabrication and employment of cobalt-doped yttrium iron garnets for the electrochemical analysis of anti-diabetic, metformin in serum of type 2 diabetes mellitus patients

“…The band is 220 nm in both pristine and cobalt-doped YIG. The literature reports that rare earth metals, i.e., yttrium give absorption at the wavelength range from 220 to 450 nm [ 24 ]. Band gap energy is calculated by the mentioned equation: The observed wavelengths are 339 nm and 341 nm for Co-doped YIG and pristine YIG, respectively.…”

“…Peaks at (400) and (420) affirm that synthesized YIGs belong to the Ia3d space group with the cubic crystal structure. The presence of the garnet phase for YIG is confirmed via the structural peak at (420) [ 24 ].

Fig.

…”

Immobilizing Behavior of Trivalent Actinide Nuclides by YIG Ceramics

“…[FeO4]四面体三种多面体共同构成。 其中[FeO6]八面 体和[FeO4]四面体共享角， 并同时与[FeO8]十二面体 共享边 [10] 。其成分简单，晶格体积大，晶格位点适 合容纳大的阳离子，8 配位的 Y 位点可以被多种价 态(+2、+3、+4)的锕系元素占据 [9,11] 。目前，在 俄罗斯的北高加索地区发现了包含高达 27wt%的 U 的长期稳定的天然石榴石 [12] ，这一发现表明石榴石 陶瓷成为核废料固化体的可能性。另外，人们合成 了各种含 U 石榴石，U 的包含量甚至可达 30%(质 量分数) [13] 。 Guo 等 [9] 对 YIG 陶瓷固化锕系核素的热 力学分析也支持其成为核废料固化体的可能性，但 鲜有化学稳定性的相关报道。 三价核素是高放废物的重要组成部分， 如 Am 3+ 、 Cm 3+ 、Pu 3+ ，它们具有高放射性、漫长的半衰期以 及毒性大等特点，需谨慎处理。大量研究表明，YIG 具有容纳三价元素的能力，特别是 Y 3+ 离子能被三 价稀土元素取代。Borade 等 [14] 采用溶胶-凝胶法自 燃烧法合成了 Y3−xCexFe5O12 (0≤x≤2.0) 的纳米颗粒， 研究了其磁性性能。Zhang 等 [15] 采用微波烧结合成 了 Y3-xNdxFe5O12(0≤x≤3.0)陶瓷材料。Makdah 等 [16] 采用共沉淀法合成了 NdxY3−xFe5O12 (0.0 ≤ x ≤ 3.0) 纳米颗粒。高建强等 [17] 采用固相烧结法合成了 YIG [18] 。采用 MCC-1 法对陶瓷样品的化学 稳 定 性 进 行 测 试 [19] 1)计算元素的归一化浸出率 (LRi)为 [20] ：…”

Optical and thermochromic properties of yttrium iron garnet paint

“…Garnets are a well-known kind of magnetic oxides that are utilized in radars, telecommunications, RF measuring systems, and microwave devices such as circulators, isolators, phase shifters, and tunable filters. Because of its importance in magneto-optical and microwave devices, Yttrium iron garnets (YIG) is an intriguing ferrimagnetic oxide [29][30][31][32][33][34][35]. Several groups have explored the optical properties of garnet single crystals, thin films, and powders [22,23,33,34,[36][37][38][39].…”

“…Because of its importance in magneto-optical and microwave devices, Yttrium iron garnets (YIG) is an intriguing ferrimagnetic oxide [29][30][31][32][33][34][35]. Several groups have explored the optical properties of garnet single crystals, thin films, and powders [22,23,33,34,[36][37][38][39]. The presence of Fe 3+ ions in iron oxides generally results in red coloration in Fe3O4, Fe2O3, ZnFe2O4 and MgFe2O4, however it results in a comparatively green coloration in YIG.…”