It is shown that ER raises (decreases) the 2p(O) levels for Be3Si6Al2O18:Cr3+ (MgAl2O4:Cr3+) along the trigonal axis thus favouring a decrease (increase) of 10Dq. The present work demonstrates the key role played by ER (not considered in the traditional ligand field theory) for ...
Effect of TiO2 on phase evolution and microstructure of MgAl2O4 spinel in different atmospheres 热度: X-ray Linear Dichroism in Apatite(磷灰石中的X射线线性二向色性) 热度: 介孔mgal2o4涂层整体式氢气燃烧催化剂的制备与表征 热度: a r X
MgAl2O4Cr3+Luminescence thermometryLuminescence probeTemperature sensing from the photoluminescence of MgAl2O4:Cr ceramic powder is systematically investigated. Material was prepared by self-propagating high temperature synthesis method. In this host, Cr experiences the strong crystal field, so the ...
Phan;T;L;Phan;M;H;Yu;S;C.A new band in Cr3+-doped MgAl2O4 natural spinel at room temperature.Physica Status Solidi (B): Basic Research.2004.434-438A new band in Cr3+‐doped MgAl2O4 natural spinel at room temperature[J] . The‐LongPhan,Manh‐HuongPhan,Seong‐ChoYu.phys. stat. ...
W.Strek,P.Deren,B.Jezowska-Trzebiatowska.Optical properties of Cr3+ in MgAl2O4 spinel[J].Physica B,1988,152(3):379-384.Strek W, Derén P, Jezowska-Trzebiatowska B (1988) Optical properties of Cr 3+ in MgAl 2 O 4 spinel. Physica B152:379–384...
Time resolved photoluminescence spectra of natural MgAl2O4 spinel doped with Cr3+ ions have been investigated at room temperature in the wavelength range between 380 and 800 nm. Using several excitation sources from the different lasers we have observed a new band, namely K, with a peak of 15...
The optical absorption and luminescence spectra of MgAl 2 O 4 :Cr 3+ natural spinel (from Ural) have been measured at 77 K and 293 K. The luminescent emission from 4 T 2 g , 2 E g covers wide region of 600–750 nm. The emission spectrum at 77 K shows a very rich vibrational ...
构造了3d3/3d7离子在三角对称晶场中考虑自旋-轨道相互作用,自旋-自旋相互作用和自旋-其它轨道相互作用的120阶微扰哈密顿矩阵.利用完全对角化该矩阵的方法计算了Cr3 :MgAl2O4晶体的基态能级,零场分裂参量,理论计算值与实验值相符合.定量研究了自旋二重态对基态能级的贡献,证明该贡献是不可忽略的.定量研究了自旋-...
Fluorescence of Cr3+ ions in MgAl2O4 epitaxial nanosize spinel films on SrTiO3 substratesdoi:10.1016/j.tsf.2019.137732S.P. FeofilovA.B. KulinkinA.K. KaveevN.S. SokolovS.M. SuturinElsevier
Electron-Nuclear Double-Resonance Investigations on Cr3+ Ions in Natural MgAl2O4 Spinel. J. Phys.: Condens. Matter 1992, 4, 7295-7306.Bravo, D.; Bottcher, R., Electron-Nuclear Double-Resonance Investigations on Cr3+ Ions in Natural MgAl2O4 Spinel. J. Phys.: Condens. Matter 1992, 4, ...