Raman Spectra of Irradiated Alkali Bromate Crystals

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概要

• 論文の詳細を見る

• Pure undamaged NaBrO_3 crystals shows four Raman lines arising from the internal oscillations in the BrO_3 ion besides a few other Raman lines due to lattice oscillations. On radiation damage by X-rays or γ-rays some new lines in the crystal are observed. Two of these at frequencies 680, 925 cm^<-1> are of particular significance. It is postulated that by irradiation certain number of BrO_3 ions which initially have a pyramidal stucture loose the bromine leaving the three oxygen atoms at the corners of an equilateral triangle. Such a postulate leads to a satisfactory explanation of the appearance of the two new lines as it is well known that an equilateral triangular structure should exhibit two normal oscillations, both of which are Raman active. Correlated optical and IR studies lend support to such an interpretation.

• 社団法人日本物理学会の論文
• 1973-08-05

著者

• Radhakrishna S.

  Department Of Physics Indian Institute Of Technology

• KARGUPPIKAR A.

  Department of Physics, Indian Institute of Technology

• Karguppikar A.

  Department Of Physics Indian Institute Of Technology

関連論文

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• EPR Studies of VO^ in Single Crystals of BaCl_2・2H_2O and BaBr_2・2H_2O
• Reorientation of Impurity-Vacancy Dipoles in Cesium Halides
• Raman Spectrum of Pure and Impurity Doped RbCl Crystals
• Raman Spectra of Irradiated Alkali Bromate Crystals

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