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本文采用半自洽场(semi-SCF) 3d轨道模型和μ-K-α模型,利用完全对角化方法,建立了Oh、D4h对称晶体场局部结构参数与光谱精细结构、EPR谱之间的定量关系,统一解释了RbCdF3∶ Ni2晶体的光谱精细结构和EPR谱.所得理论结果与实验值符合很好.

参考文献

[1] Rousseau M;Gesland J Y;Julliard J et al.Crystallographic,Elastic,and Raman Scattering Investigations of Structural Phase Transitions in RbCdF3 and TlCdF3[J].Physical Review B:Condensed Matter,1975,12:1579-1590.
[2] Fayet-Bonnel M;Buzaré J Y;Fayet J C .The Gd3+-Vcd Centre in RbCdF3 as an Accurate EPR Probe to Investigate the Ob1-D4b18 Structural Phase Transition[J].Solid State Communications,1981,38:37-39.
[3] Studzinski P;Spaeth J M .Endor Investigation of the Structural Phase Transition in RbCdF3[J].Journal of Physics C:Solid State Physics,1986,19:6441-6449.
[4] Rousseau J J;Rousseau M;Fayet J C .EPR Investigations of a Structural Phase Change in RbCaF3,RbCdF3,and TlCdF3[J].Physical Status Solidi B,1976,73(02):625-631.
[5] Roussean M;Gesland J Y;Julliard J et al.Changement de Phase Structural dans RbCdF3 et TlCdF3[J].Journal de Physique Lettres,1975,36(05):121-124.
[6] Buzare J Y;Fayet J C .The Fe3 +-O2-Pair in the Diamagnetic AMF3 Perovskites:A Sensitive Probe for EPR Investigations of Structural Phase Changes[J].Solid State Communications,1977,21(1 2):1097-1100.
[7] Yang ZY. .An investigation of the EPR zero-field splitting of Cr3+ ions at the tetragonal site and the Cd2+ vacancy in RbCdF3 : Cr3+ crystals[J].Journal of Physics. Condensed Matter,2000(17):4091-4096.
[8] Yang Z Y .Theoretical Investigation of the Electron Paramagnetic Resonance Parameten and the Crystal Lattice Defects of the Trigonal Symmetry in RbCdF3:Cr3 +[J].Applied Magnetic Resonance,2000,18(04):455-461.
[9] 杨子元 .新型材料中过渡金属激活离子的磁相互作用及其微观自旋哈密顿理论研究[D].西安电子科技大学,2005.
[10] 曾体贤;谌家军;陈太红 .掺Cr3+晶体SrLaGaO4和Cs2 CdCl4的EPR理论研究[J].人工晶体学报,2010,39(01):249-253.
[11] Chernitskii M V;Nikiforov A E;Krotkii A I .Microscopic Mechanisms of Paramngnetic Probe-Lattice Interaction for the System RbCdF3:Cr3 +near the Structural Phase Transition[J].Physical Status Solidi B,1988,145:425-434.
[12] Williams G V M;Schweizer S;Dunford C et al.X-ray and UV Induced Photo-luminescence fron RbCdF3:Mn2 +[J].Current Applied Physics,2006,6:351-354.
[13] Takeuchi H;Arakawal M;Ebisu H .EPR Study of Fe3 +-Vcd and Fe3 +-Li + Centres in RbCdF3 and CsCdF3 Crystals[J].Journal of the Physical Society of Japan,1987,56(10):3677-3682.
[14] Dotzler C;Williams G V M;Edgar A .RbCdF3:Mn2+:A Potential Ultraviolet Dosimeter Material[J].Applied Physics Letters,2007,91:181909-181911.
[15] Williams G V M;Dotzler C;Edgar A et al.Optically Rewritable Bragg Gratings in Mn2+ DopedRbCdF3[J].Journal of Materials Science:Materials in Electronics,2009,20:268-271.
[16] Li, HF;Kuang, XY;Wang, HQ .Local structural properties of (NiF6)(4-) clusters in perovskite fluorides RbMF3 (M = Cd2+, Ca2+, Mg2+) series: EPR and optical spectra study in tetragonal and trigonal ligand field[J].Chemical Physics Letters,2008(1/3):133-137.
[17] 陈太红,代伟,陈元莉.KMgF3:Ni2+晶体的占位、局部结构、吸收光谱和顺磁g因子的统一解释[J].人工晶体学报,2008(02):484-488.
[18] Alcala R;Casas-Gonzalez J;Villacampa B .Optical Properties of 3d-ions Doped RbCdF3[J].Radiation Effects and Defects in Solids:Incorporating Plasma Science and Plasma Technology,1991,119:901-906.
[19] 陈太红,肖顺文,陈元莉,余飞,曾体贤.Ni(IO3)2·2H2O晶体的局部结构、吸收谱和漫反射光谱的研究[J].人工晶体学报,2007(06):1377-1381.
[20] 陈太红,曾体贤,彭松山,宋婷婷,蒲瑾,谌家军.CdX2(X=Cl、Br):Ni2+晶体的吸收光谱和EPR谱的统一解释[J].人工晶体学报,2010(03):807-812.
[21] Rudowicz C.;Yeung YY.;Yang YZ.;Qin J. .Microscopic spin Hamiltonian approaches for 3d(8) and 3d(2) ions in a trigonal crystal field - perturbation theory methods versus complete diagonalization methods[J].Journal of Physics. Condensed Matter,2002(22):5619-5636.
[22] Ma DP.;Chen JR.;Liu YY.;Ma XD. .PRESSURE-INDUCED SHIFTS OF ENERGY LEVELS OF ALPHA-AL2O3-V3+ AND A COMPLETE LIGAND-FIELD CALCULATION[J].Physical Review.B.Condensed Matter,1997(4):1780-1786.
[23] 陈太红.晶体NiF2的吸收光谱和电子顺磁共振谱的一种完全对角化计算[J].计算物理,2008(02):218-224.
[24] Xie, LH;Hu, P;Huang, P .Theoretical interpretation of optical and EPR spectra and the substitutional site of ferroelectric LiNbO3 : Ni2+ crystal[J].The journal of physics and chemistry of solids,2005(5):918-921.
[25] Zhao M G;Du M L;Shen G Y .A μ-k-α Correlation Ligand-field Model for the Ni2+-6X-Cluster[J].Journal of Physics C:Solid State Physics,1987,2,0:5557-5571.
[26] Abragam A;Bleaney B.Electron Paramagnetic Resonance of Transition Ions[M].Oxford:Oxford University Press,1970
[27] Alcala R;Gonzalez J C;Villacampa B et al.Photoluminescence of Ni2 + Ions in RbCdF3 and RbCaF3[J].Journal of Luminescence,1991,48:569-573.
[28] Villacampa B;Alcala R;Alonso P J et al.Spectroscopic Properties of Ni2+ in RbCaF3 and RbCdF3[J].Journal of Physics:Condensed Matter,1993,S:747-756.
[29] Alonso P J;Alcalá R .Ni2 + Ions in RbCdF3:An EPR Study in the Cubic and Tetragonal Phases[J].Physical Review B:Condensed Matter,1990,41:10902-10905.
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