Temperature Change of the Far-Infrared Absorption and Nature of Low-Frequency Modes in Silica Glass : Condensed Matter: Electronic Properties, etc.

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概要

• 論文の詳細を見る

• The far-infrared absorption of three kinds of silica glasses with different OH concentrations has been measured at 11 K in the region 10-100 cm^<-1> and compared with the absorption at 297 K. Below the so-called boson peak, the absorption was markedly dependent on temperature, but by contrast above the boson peak, it was almost independent of temperature, indicating the existence of two different types of low-frequency modes. It is suggested the,t the temperature-dependent absorption is due to structural relaxation modes, and the temperature-independent absorption reflects the density of states of collective motions of atoms related to clusters, though it is incomprehensible why the absorption is temperature independent.

• 社団法人日本物理学会の論文
• 2000-11-15

著者

• Ohsaka Toshiaki

  Research Institute For Scientific Measurements Tohoku University

• SHOJI Tadanobu

  Research Institute for Scientific Measurements, Tohoku University

• TANAKA Kazuya

  Research Institute for Scientific Measurements, Tohoku University

• Shoji Tadanobu

  Research Institute For Scientific Measurements Tohoku University

• Tanaka Kazuya

  Research Institute For Scientific Measurements Tohoku University

関連論文

• Lattice Dynamics of Solid CS_2 Based on Kihara Potential
• Temperature Change of the Far-Infrared Absorption and Nature of Low-Frequency Modes in Silica Glass : Condensed Matter: Electronic Properties, etc.
• Effect of OH Content on the Far-Infrared Absorption and Nature of the Boson Peak in Silica Glass

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