Optical Constants and Excition States in KCl Single Crystals. : III. The Spectra of Conductivity and of Energy Loss

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概要

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• The spectra of conductivity σ(E) and of energy loss Im{ε(E)^<-1>} of KCl single crystals are studied as functions of temperature of the ranged of 10°K to 573°K in the intrinsic region to 12eV. It is shown that σ(E)-spectra in the chlorine doublet region can be decomposed in the whole range of temperature into the two components of asymmetric Lorentzian from with positive degree of asymmetries. This allows the study of the temperature dependences of those quantities which are characteristiec of an asymmetric Lorentzian function, and the derivation of the mean energy values of various kinds of phonons effective to each of the above quantities, thus leading to an increasing recognition of an importance of exciton-phonon interaction in the process of photon absorption. The oscillator strength of chlorine doublet is estimated as a whole as 0.56±0.09. The oscillator strength of the higher energy component of this doublet is found to increase linearly with increase in temperature accompanying the compensating decrease in the oscillator strength of the lower energy component, indicating the interband interaction. A tentative interpretation is given on the spectrum in the region up to 13.4eV.

• 社団法人日本物理学会の論文
• 1969-03-05

著者

• Tomiki Tetsuhiko

  Matsushita Research Institute Tokyo

• Tomiki Tetsuhiko

  Matsushita Research Institute Tokyo, Inc.

関連論文

• Optical Constants and Exciton States in KCl Single Crystals. I. The Low Temperature Properties
• The UV Reflectivity Spectra of SrF_2 Single Crystals
• Temperature Dependence of the Fundamental Spectra of Potassium-Halides in the Schumann Ultraviolet Region (4.4∼13.5 eV)
• Reflectivity Spectra of KBr and KI Single Crystals in Their Fundamental Region
• The Urbach Tails and Reflection Spectra of NaCl Single Crystals
• Ionic DC-Conductivities of KCl
• Optical Studies on NaCl Crystals
• The UV Reflectivity Spectra of KF, CaF_2 and BaF_2 Single Crystals
• Absorption Edges of NaCl Single Crystal
• The Absorption Edge of KCl
• Optical Constants and Exciton States in KCl Single Crystals : II. The Spectra of Reflectivity and Absorption Constant
• Optical Studies of Alkali Fluorides and Alkaline Earth Fluorides in VUV Region
• Optical Constants and Excition States in KCl Single Crystals. : III. The Spectra of Conductivity and of Energy Loss
• UV Reflection Spectra of KCl Single Crystals

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