二者同时存在的话,可能真个谱图看似是Mn2+的信号, 但若你做模拟和拟合的话, 就应该能够区分出来.同时...
Analysis of the EPR line width in terms of magnetic dipole–dipole and exchange interactions points to two kinds of Mn 4+ in octahedral spinel sites: one of them has as first neighbours five paramagnetic Mn 4+ and one diamagnetic Li +, whereas the second type of Mn 4+ is in a Li-...
“自还原”是掺入基质的高价态激活离子在没有还原性气氛下被还原为低价态的离子。该研究团队选择具有刚性网状类钙钛矿结构化合物NaZn(PO3)3为基质,在其中掺入MnO2,空气中烧结后制备出的发光材料完全表现为Mn2+的发光性质,EPR检测结果表明所制备发光材料中的掺入离子为Mn2+(图1)。为了进一步确定空气中烧结后生成的...
The structural and luminescent properties were investigated using the XRD analysis, PL and PLE spectroscopies, EPR, and Raman scattering techniques. The study was focused on the structural phase transition of the hexahydrate phosphor under an action of sample heating in air or cooling in conjunction ...
因此,在本论文中,我们详细研究了在特定锗酸盐和铝酸盐中Mn的自还原现象以及Mn2+/Mn4+的价态调控,本论文的主要研究结果如下:(1)采用传统的高温固相法在空气气氛下制备了Zn2GeO4:Mn荧光粉,变化掺杂浓度、Mn源以及合成温度,均能得到来源于Mn2+离子4T1(4G)→6A1(6S)跃迁的536nm绿光发射,通过光谱、EPR、XPS等...
由于ZPL位于斯托克斯峰与反斯托克斯峰中间，使得发射峰由两个分离的峰变成完整的峰。这种材料可作为植物生长照明LED灯中的近红外光部分。图3 (a) LAMG:Mn4+(x=0-0.4)荧光粉的拉曼光谱，(b) MO6八面体的扭曲程度，(c) EPR图谱，(d) Mg2+-Ge4+掺杂量对Mn4+周围配位环境的影响。图4 77 K下，LAMG:...
构造了菱面体中Mn〜(2+)中心的自旋金刚尼和正交晶相中的Mn〜(4+)的自旋金刚烷,并确定了室温下相同Mn〜(4+)结构的类星体的主轴方向。讨论了确定没食子酸镧氧八面体的旋转角相对于每计数结构的EPR的可能性。这项工作得到了Rosobrazovaniya计划和CRDF BRHE(U4-R-05-O1)的资助。
The EPR spectra of ${\\mathrm{Fe}}^{3+}$ and ${\\mathrm{Mn}}^{2+}$ in the single crystal Zn${\\mathrm{Ga}}_{2}$${\\mathrm{O}}_{4}$ have been measured. The room-temperature spin-Hamiltonian parameters of ${\\mathrm{Fe}}^{3+}$, which are related to the magnetocry...
EPR OF Mn**2** plus In Cs//2Zn(SeO//4)//2. 6H//2O AND (NH//4)//2Fe(SeO//4)//2. 6H//2O SINGLE CRYSTALS 来自 ResearchGate 喜欢 0 阅读量: 19 作者:SK Yadav,VP Seth,RK Malhotra 摘要: The electron paramagnetic resonance of VO2+ in cesium oxalate monohydrate has be...
(EPR) signals were often interpreted based on simplified theoretical models with OH−at W2 (e.g., refs.10,22,23). pKa(W1) is significantly lower than pKa(W2) if the Mn4CaO5cluster includes the second sphere ligand residues, D1-Asp61 and CP43-Arg357 (Table3, Fig.4a). Thus, as...