2004
DOI: 10.1016/j.jlumin.2004.01.014
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Dichroic infrared absorption of dipole centers in cadmium halide crystals

Abstract: Dichroic infrared (IR) absorption measurements on CN‾ or OH‾ centers in cadmium halide crystals were carried out at 6 K with a high spectral resolution of 0.025 cm−1 at 2000 cm−1, by using a FT-IR spectrometer. Several sharp absorption lines with widths less than 0.1 cm−1 are observed in the energy region of the stretching vibration, i.e. 2000–2250 cm−1 for CN‾ and 2500–4500 cm−1 for OH‾. These lines are classified into three groups attributed to: (1) an isolated center simply substituted for a halogen ion, (2… Show more

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Cited by 5 publications
(1 citation statement)
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“…When doping a small amount of metal cyanide into these crystals, it is supposed that cyanide ions are substituted for the halogen-ions. In the present work, polarized IR absorption has been investigated on CdX 2 (X=Cl, Br or I) doped with CN -as an electric dipole center [2][3][4][5]. The two dimensional distribution of CN -ions in each halogen-ion sheet would bring forth distinctive behaviors different from the CN -centers in alkali-halides [6][7][8].…”
Section: Introductionmentioning
confidence: 97%
“…When doping a small amount of metal cyanide into these crystals, it is supposed that cyanide ions are substituted for the halogen-ions. In the present work, polarized IR absorption has been investigated on CdX 2 (X=Cl, Br or I) doped with CN -as an electric dipole center [2][3][4][5]. The two dimensional distribution of CN -ions in each halogen-ion sheet would bring forth distinctive behaviors different from the CN -centers in alkali-halides [6][7][8].…”
Section: Introductionmentioning
confidence: 97%