Nano-Scale Particles of Mixed Alkali-Metals in KCl Crystals(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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概要

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• When the additively colored KC1 crystals containing Li^+ and Na^+ ions are leaved alone at a temperature in the region of 470 to 570K, we have found that there appear new characteristic colloid bands in the visible region. In such annealed crystals, no Tyndal cone is observed, and both the peak position and the line width of the colloid bands are almost independent of temperatures over the range of 40K to room temperature. On the basis of analytical results of the optical absorption spectra due to colloidal particles, it is concluded that the colloid bands observed for the KC1: Li and KC1: Na crystals are attributable to the mixed alkali-metal particles consisting of Li°- and Na°-atoms and of Na°- and K°-atoms, respectively. The peak positions and the line widths of the absorption bands are discussed, together with the consideration of free-electron densities and size effects of the mixed nano-scale metal particles.

• 社団法人日本物理学会の論文
• 2006-09-15

著者

• Okada Takeyuki

  School Of Mathematics And Physics Faculty Of Engineering Setsunan University

関連論文

• Nano-Scale Particles of Mixed Alkali-Metals in KCl Crystals(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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