欢迎登录材料期刊网

材料期刊网

高级检索

在晶体场理论的基础上,利用四角对称3d9离子自旋哈密顿参量高阶微扰公式计算了Zinc 1-malate trihydrate:Cu2+的g因子(g//,g⊥)和超精细结构常数(A//,A⊥).结果表明,由于Jahn-Teller效应,Zinc 1-malate trihydrate:Cu2+晶体中配体氧八面体沿C4轴方向伸长约0.0033 nm,络离子[CuO6]10-的键长R∥≈0.2157 nm,R⊥≈0.2058 nm;局域结构沿C4轴方向呈伸长八面体结构.所得EPR参量理论计算与实验符合较好,并对上述结果进行了讨论.

参考文献

[1] Raju CL;Gopal NO;Narasimhulu KV;Rao JL;Reddy BCV .EPR, optical and infrared absorption studies of Mn2+ ions doped in zinc malate trihydrate single crystal[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2005(9):2181-2187.
[2] Devatine A.;Canselier JP.;Gabas N.;Jaud J. .Crystal and molecular structure of calcium L(-)-malate trihydrate[J].Journal of chemical crystallography,2003(2):85-90.
[3] 徐平川,陈太红,曾体贤.RbCdF3∶Ni2晶体结构相变、光谱精细结构和EPR谱的研究[J].人工晶体学报,2012(01):248-252.
[4] Zhang, H.-M.;Wu, S.-Y.;Zhang, Z.-H. .Theoretical studies of the spin Hamiltonian parameters and the local structures for the tetragonal Cu2+ centers in the LKB glasses[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2011(10):2054-2058.
[5] 董会宁,王珏,孙雷,李登峰,刘俊.钛酸铅晶体中3种Cu2+离子中心的电子顺磁共振研究[J].重庆邮电大学学报(自然科学版),2007(06):762-763.
[6] 李超英,杨建荣.Ca(OD)2:Cu2+局部结构及自旋哈密顿参量研究[J].电子科技大学学报,2012(03):405-407.
[7] Zheng, W.C.;Mei, Y.;Yang, Y.G.;Liu, H.G. .Studies on the spin-Hamiltonian parameters of two Cu ~(2+) centers and their defect structures due to Jahn-Teller effect for Cu ~(2+)-doped ZnGa _2O _4 spinel[J].Philosophical magazine: structure and properties of condensed matter,2012(4/6):760-767.
[8] Dong HN;Wu SY;Li P .Theoretical explanation of EPR parameters for Cu2+ ion in TiO2 crystal[J].Physica status solidi, B. Basic research,2004(8):1935-1938.
[9] 冯文林,谌家军,邓丽城,吴慧聪,高山泉.晶体(NH4)2C4H4O6:VO2+的EPR参量及局域结构的研究[J].人工晶体学报,2006(06):1368-1371.
[10] Feng WL;Nie YM;Hu N;Zhang WZ;Wu Y;Chen TH .Defect structure and EPR parameters of the Cu2+ center in MNB ternary glasses[J].Spectroscopy Letters,2008(4):151-153.
[11] Kalfaolu, E.;Karabulut, B. .Theoretical investigation of EPR and molecular orbital coefficient parameters for [Cu(hsm)_2(sac)_2] complex[J].Chemical Physics Letters,2011(4/6):154-156.
[12] 彭松山,陈太红,谌家军.Cu2+:C8N14O6 Zn的局域结构、吸收光谱和电子顺磁共振谱的研究[J].硅酸盐通报,2008(04):725-729.
[13] Can N;Karali T;Townsend PD;Yildiz F .TL and EPR studies of Cu, Ag and P doped Li2B4O7 phosphor[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2006(10):2038-2043.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%