Preliminary Study of the Exciton Absorption Spectrum of PbI_2

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概要

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• The absorption spectra of PbI_2 at low temperatures were examined after the method of Nikitine. For the band at 500 mμ, the existence of the hydrogen-like series was confirmed under the assumption that the band was composed of several components of Gaussian type, represented by the formula ν=20,853-1,150 / n^2 cm^<-1>[20°K]. As for the shape of each component of the band, the Gaussian form was preferable than the Lorentzian one, though the latter was expected from Toyozawa's theory. From the temperature-dependence of the band, it was concluded that(i)the rate of shift of the absorption maximum towards the shorter wavelength with the lowering of temperature is ca.1.5・10^<-4> ev / °K and(ii)the half value width of the band is ca.0.02ev, which is not sensitive to the temperature.

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著者

• Imai Isamu

  Institute For Solid State Physics University Of Tokyo

• Imai Isamu

  Institute Of Physics College Of General Education University Of Tokyo:doctor Course Of Physical Bran

• Ishiguro Kozo

  Institute Of Physics College Of General Education University Of Tokyo

• IMAI Isamu

  Institute of Physics, College of General Education, University of Tokyo:Doctor Course of Physical Branch, University of Tokyo

関連論文

• Cyclotron Resonance Line Broadening due to Carrier-Carrier Interaction in Germanium
• Line-Broadening of Cyclotron Resonance due to Lattice and Neutral Impurity Scattering in Silicon and Germanium
• Measurements of Relaxation Time in Germanium by the Cyclotron Resonance
• Preliminary Study of the Exciton Absorption Spectrum of PbI_2
• Measurement of the Relaxation Time for Electrons in Silicon by Cyclotron Resonance

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