The Decay Behavior of Photo-Induced Electron Spin Resonance of Chromium in Zinc Sulfide

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概要

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• The decay behavior of photo-induced electron spin resonance of chromium in ZnS has been studied at temperatures between 77°K and 325°K with X-band. The Cr^+ ESR signal appeared under irradiation of light in a band centered around 3650Å. The simple calculations of photo-induced ESR signal have been made and compared with the experimental results. From these experimental results, it has been found that the decay behavior of Cr^+ ESR signals obey the bimolecular recombination process. The decay time constants above 250°K obey the exponential law (exp(-E_t/kT)) and below 250°K they depart from this law. Especially, below 120°K these decay time constants are independent of temperature. In order to explain these temperature independent decay time constants below 120°K, the donor-acceptor pair recombination mechanism may be considered. On the other hand, the decay time constants above 250°K enable us to determine the value of trap depth (E_t=0.78 eV) which is in a reasonable agreement with the results of other methods.

• 社団法人日本物理学会の論文
• 1968-12-05

著者

• TAKI Toshihiko

  Department of Thoracic Surgery,Kitano Hospital,Tazuke Kofukai Medical Research Institute

• Taki Toshihiko

  Department Of Electrical Engineering Kobe University:(present Address) Faculty Of Engineering Tokush

• Taki Toshihiko

  Department Of Electrical Engineering Kobe University

• BO Hiroshi

  Department of Electronic Engineering, Faculty of Engineering, Kobe University

• Bo Hiroshi

  Department Of Electrical Engineering Kobe University

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