Jahn-Teller study of the orthorhombically distorted Cr2+ centre in SrF2 and CaF2

被引：0
|
作者：
机构：
来源：
J Phys Condens Matter | / 12卷 / 2579-2588期
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cr2+ centres in SrF2 and CaF2 are strongly coupled Jahn-Teller systems. A theoretical Jahn-Teller model is developed, in which the parameters that appear in the effective Hamiltonian describing the 5T2g ground state of the Cr2+ ion are obtained by fitting previously published EPR results. It is found necessary to include certain random strains in the analysis in order to explain the orthorhombic features of the EPR spectra. The coupling between the ground and excited states and the effects of other perturbations are discussed.
引用
收藏
相关论文
共 50 条
  • [41] Jahn-Teller effect in the emission and absorption spectra of ZnS:Cr2+ and ZnSe:Cr2+ -: art. no. 075206
    Bevilacqua, G
    Martinelli, L
    Vogel, EE
    Mualin, O
    PHYSICAL REVIEW B, 2004, 70 (07) : 075206 - 1
  • [42] Off-centre dynamic Jahn-Teller effect studied by electron spin relaxation of Cu2+ ions in SrF2 crystal
    J Phys Condens Matter, 1600, 8 (1855-1866):
  • [43] INTERSTITIAL HELIUM DIFFUSION IN CAF2, SRF2, BAF2
    KUPRYAZHKIN, AY
    POPOV, EV
    FIZIKA TVERDOGO TELA, 1984, 26 (01): : 160 - 163
  • [44] RADIATION EFFECTS IN HYDROLYZED CAF2, SRF2 AND BAF2
    PENA, JI
    ALONSO, PJ
    ALCALA, R
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1988, 49 (03) : 273 - 278
  • [45] VAPOR-PRESSURE AND HEATS OF SUBLIMATION OF CAF2 AND SRF2
    ZAITSEV, AI
    KOROLYOV, NV
    MOGUTNOV, BM
    HIGH TEMPERATURE SCIENCE, 1989, 28 : 341 - 350
  • [46] LONGITUDINAL OPTICAL PHONONS IN CAF2 SRF2 + BAF2
    RICHMAN, I
    JOURNAL OF CHEMICAL PHYSICS, 1964, 41 (09): : 2836 - +
  • [47] JAHN-TELLER CHROMIUM IONS IN SRF2 CRYSTALS - EPR STUDY IN 9.3-300-GHZ RANGE
    ZARIPOV, MM
    TARASOV, VF
    ULANOV, VA
    SHAKUROV, GS
    POPOV, ML
    FIZIKA TVERDOGO TELA, 1995, 37 (03): : 806 - 813
  • [48] A TRIGONALLY CHARGE-COMPENSATED Y2+ ION IN CAF2 - A JAHN-TELLER SYSTEM
    BILL, H
    MAGNE, G
    BALESTRA, C
    LOVY, D
    JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (01): : L19 - L23
  • [49] RELAXATION AND DYNAMICS OF THE (111) SURFACES OF THE FLUORIDES CAF2 AND SRF2
    JOCKISCH, A
    SCHRODER, U
    DEWETTE, FW
    KRESS, W
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (31) : 5401 - 5410
  • [50] Structural phase stability of CaF2 and SrF2 under pressure
    Kanchana, V
    Valtheeswaran, G
    Rajagopalan, M
    PHYSICA B-CONDENSED MATTER, 2003, 328 (3-4) : 283 - 290
12345