PHOTOINDUCED INSTABILITY OF MNO4- MOLECULAR DEFECTS IN POTASSIUM-IODIDE

被引:6
作者
MAKSIMOVA, T [1 ]
VOGELSANG, H [1 ]
STOLZ, H [1 ]
VONDEROSTEN, W [1 ]
MINTAIROV, AM [1 ]
机构
[1] AF IOFFE PHYS TECH INST,ST PETERSBURG 194021,RUSSIA
关键词
INSULATORS; ELECTRONIC STATES (LOCALIZED); INELASTIC LIGHT SCATTERING;
D O I
10.1016/0038-1098(94)90712-9
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
An instability of the MnO4- molecular ion in KI is reported that occurs under intense resonant excitation in the 1A1 to 1T2 optical transition of the impurity. The intensities of the resonantly excited vibrational Raman lines and the absorption strength are used to monitor the time dependence of this effect which is investigated for different temperatures and excitation powers. A physical model is discussed that involves ionization of the molecular ion and qualitatively accounts for the experimental observations.
引用
收藏
页码:337 / 340
页数:4
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