Zheng Wen-Chen

Summary

Affiliation: University of Electronic Science and Technology of China
Country: China

Publications

  1. ncbi request reprint g factors and the tetragonal distortion of ligand octahedron for Co2 + in Rb2MgF4 crystal
    Z Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 56:2061-6. 2000
  2. ncbi request reprint Local structure and local compressibilities around Co2+ impurity in ZnSiF6.6H2O crystal determined from electron paramagnetic resonance data
    Z Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 57:1177-82. 2001
  3. ncbi request reprint Electron paramagnetic resonance parameters of V2+ ions in both Cd2+ sites of CsCdCl3 crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:79-82. 2002
  4. ncbi request reprint Studies of electron paramagnetic resonance parameters and defect structures for Ti2+ and V3+ ions in CdS crystals
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:537-41. 2002
  5. ncbi request reprint Local tilting angles tau for Fe+ in Cd2+ site and Fe3+ in Si4+ site of CdSiP2 semiconductor
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:1779-83. 2002
  6. ncbi request reprint Studies of the g factors and zero-field splitting for the trigonal Ti(2+)(Ga)-S(p) defect center in GaP crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 59:751-4. 2003
  7. doi request reprint Spin-Hamiltonian parameters and local structures for Co4+ and Ir4+ impurity centers in the tetragonal phase of SrTiO3
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 71:1551-4. 2008
  8. ncbi request reprint Studies of the defect structures of the trigonal Cr3+-Vc centers in fluoroperovskites from EPR and optical spectra
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 63:126-9. 2006
  9. doi request reprint Theoretical calculations of spin-Hamiltonian parameters for CsCdX(3):Ni(2+) (X=Cl, Br) crystals from the two-mechanism model
    Fang Wang
    Department of Material Science, Sichuan University, Chengdu 610064, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 71:739-42. 2008
  10. ncbi request reprint EPR parameters and impurity structures for Cr3+ ions in KSc(MoO4)2, RbIn(MoO4)2 and RbSc(MoO4)2 crystals
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, P R China
    Spectrochim Acta A Mol Biomol Spectrosc 61:1243-6. 2005

Collaborators

  • Wu Shao-Yi
  • Fang Wang
  • Mei Yang
  • Liu Hong-Gang
  • Wu Xiao-Xuan
  • Su Ping
  • Qu Gui-Qiang
  • Yang Wei-Qing
  • Zhou Qing
  • Dong Hui-Ning
  • Yang Yu-Guang
  • He Lv
  • Tang Sheng

Detail Information

Publications24

  1. ncbi request reprint g factors and the tetragonal distortion of ligand octahedron for Co2 + in Rb2MgF4 crystal
    Z Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 56:2061-6. 2000
    ....
  2. ncbi request reprint Local structure and local compressibilities around Co2+ impurity in ZnSiF6.6H2O crystal determined from electron paramagnetic resonance data
    Z Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 57:1177-82. 2001
    ..The results show that these local values are different from those of the host crystal because of the influence of impurity...
  3. ncbi request reprint Electron paramagnetic resonance parameters of V2+ ions in both Cd2+ sites of CsCdCl3 crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:79-82. 2002
    ..From the calculations, the signs of zero-field splittings and hyperfine structure constants are determined and so all of the EPR parameters are explained reasonably on the basis of the structure data of lattice...
  4. ncbi request reprint Studies of electron paramagnetic resonance parameters and defect structures for Ti2+ and V3+ ions in CdS crystals
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:537-41. 2002
    ..From the studies, the defect structures of these paramagnetic impurity centers are obtained and the EPR parameters are also explained reasonably...
  5. ncbi request reprint Local tilting angles tau for Fe+ in Cd2+ site and Fe3+ in Si4+ site of CdSiP2 semiconductor
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 58:1779-83. 2002
    ..From the calculations, the local tetragonal distortions and hence the local tilting angles tau (which are different from the corresponding host values) for both paramagnetic centers are estimated. The results are discussed...
  6. ncbi request reprint Studies of the g factors and zero-field splitting for the trigonal Ti(2+)(Ga)-S(p) defect center in GaP crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 59:751-4. 2003
    ..The calculated results are close to the observed values. The suggestion of [Ti(Ga)(2+)-Sp] pair defect in GaP:Ti co-doped with sulphur is also confirmed from this calculation...
  7. doi request reprint Spin-Hamiltonian parameters and local structures for Co4+ and Ir4+ impurity centers in the tetragonal phase of SrTiO3
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 71:1551-4. 2008
    ..The results are discussed...
  8. ncbi request reprint Studies of the defect structures of the trigonal Cr3+-Vc centers in fluoroperovskites from EPR and optical spectra
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 63:126-9. 2006
    ..The results are discussed...
  9. doi request reprint Theoretical calculations of spin-Hamiltonian parameters for CsCdX(3):Ni(2+) (X=Cl, Br) crystals from the two-mechanism model
    Fang Wang
    Department of Material Science, Sichuan University, Chengdu 610064, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 71:739-42. 2008
    ..So, for 3d(n) ion clusters in crystals with heavy element ligand ion (e.g., Br(-)), the reasonable explanations of SH parameters should contain the contributions from both CF and CT mechanisms...
  10. ncbi request reprint EPR parameters and impurity structures for Cr3+ ions in KSc(MoO4)2, RbIn(MoO4)2 and RbSc(MoO4)2 crystals
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, P R China
    Spectrochim Acta A Mol Biomol Spectrosc 61:1243-6. 2005
    ..It is found that the MO(6) octahedra in these crystals change from the trigonal elongation in the pure crystals to the trigonal compression in the impurity centers. The results are discussed...
  11. doi request reprint Defect structure and spin-Hamiltonian parameters for the CuCl(6)(4-) cluster in the tetragonal RbCdCl(3):Cu(2+) crystal
    Mei Yang
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 72:515-7. 2009
    ..It appears that for the exact calculations of SH parameters of CuCl(6)(4-) clusters in crystals, the contributions due to both CF and CT mechanisms should be taken into account...
  12. doi request reprint Studies of the spin-Hamiltonian parameters and defect structures for the tetragonal and cubic Yb3+ centers in AgCl crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 84:164-7. 2011
    ....
  13. doi request reprint EPR parameters and defect structures for the Co2+ ions in LiNbO3 and LiTaO3 crystals
    Mei Yang
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 71:714-9. 2008
    ..The results are discussed...
  14. ncbi request reprint Studies of the defect structure for Mn2+ in KTaO3 crystal from the calculation of EPR zero-field splitting
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, People s Republic of China
    Spectrochim Acta A Mol Biomol Spectrosc 67:694-6. 2007
    ..It appears that the reliability of the defect structure of impurity center determined from the calculation of SH parameter depends strongly upon reasonableness of the used expressions and parameters...
  15. ncbi request reprint EPR paramaters and defect structure of the trigonal Ti2+ center in ZnS
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 61:2720-3. 2005
    ..The results (the calculated EPR parameters and the defect structure) are discussed...
  16. doi request reprint Investigations of the optical and EPR spectra for VO2+ in LiKSO4 crystals
    Fang Wang
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 71:513-5. 2008
    ..The negative signs of hyperfine structure constants A(//) and A(perpendicular) for VO2+ in LiKSO4 crystals are also suggested from the calculations...
  17. doi request reprint Studies on the spin-Hamiltonian parameters of CuN(6) clusters and their tetragonal distortions due to Jahn-Teller effect for Cu2+ in trigonal M(1-propyltetrazole)6(BF4)2 (M=Zn, Fe) crystals
    Su Ping
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 77:1088-91. 2010
    ..The results are discussed...
  18. ncbi request reprint Studies of the electric-field-induced zero-field splitting for a substitution Mn2+ ion in SrCl2 crystal
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 61:901-4. 2005
    ..The results are comparable with those obtained from the potential-energy curve of Mn2+ center...
  19. doi request reprint Zero-field splittings and local tilting angles tauMn2+ for Mn2+ in ZnGeP2 and CdGeP2 crystals
    Liu Hong-Gang
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 71:417-20. 2008
    ..The value is quite unlike that (approximately 0.4(2)cm(-1)) obtained in the previous paper by combining the crystallographic data of host crystals with the ZFSs for Mn2+ ions in crystals. The reasonableness of these results is discussed...
  20. ncbi request reprint EPR parameters and local geometry for Cr3+ and V2+ ions in HfS2 crystals
    Zhou Qing
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 62:769-72. 2005
    ....
  21. doi request reprint Spin-Hamiltonian parameters and angular distortion for the trigonal Nd(3+) center in congruent LiNbO(3)
    Qu Gui-Qiang
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 75:1443-5. 2010
    ..The results are discussed...
  22. ncbi request reprint Studies of EPR parameters for Mn5+ -doped Li3PO4 and Li3VO4 crystals
    Zheng Wen-Chen
    Department of Material Science, Sichuan University, Chengdu 610064, PR China
    Spectrochim Acta A Mol Biomol Spectrosc 66:102-5. 2007
    ..It appears that for a high valence state 3dn ion in crystals, the reasonable explanations of EPR parameters should take the contributions due to both crystal-field and charge-transfer excitations into account...
  23. ncbi request reprint Investigations of the g factors and hyperfine structure parameters for Er3+ ion in zircon-type compounds
    Wu Shao-Yi
    Department of Material Science, Sichuan University, Chengdu 610064, China
    Spectrochim Acta A Mol Biomol Spectrosc 58:3179-83. 2002
    ..The contributions of the second-order perturbation terms to EPR parameters are also discussed...
  24. ncbi request reprint Investigations of the EPR parameters for Sm3+ ions in KY3F10 and LiYF4 crystals
    Dong Hui-Ning
    Institute of Solid State Physics, Sichuan Normal University, Chengdu 610066, China
    Spectrochim Acta A Mol Biomol Spectrosc 60:489-92. 2004
    ..The calculated results (which are in agreement with the observed values) are discussed...