FAR-INFRARED ABSORPTION BY SMALL PARTICLES OF YBa//2Cu//3O//6//. //7//4.

N. Kuroda, F. Chida, Y. Sasaki, Y. Nishina, M. Kikuchi, A. Tokiwa, Y. Syono

研究成果: Conference article査読

抄録

The superconducting energy gap, 2 DELTA , in YBa//2Cu//3O//6//. //7//4 has been measured directly by far-infrared absorption in small particles embedded homogeneously in 50 mu m-thick polyethylene films. The radius of the particle ranges from 3 to 6 mu m, the average being about 4 mu m. The measurements are performed at 295 K and 1. 6 K in the wavenumber range from 23 to 400 cm** minus **1. At 295 K, the absorption coefficient increases rapidly with increase in the wavenumber, but tends to level off above 300 cm** minus **1. If the temperature is lowered down to 1. 6 K, the absorption becomes undetectable at low wavenumbers. It begins to rise at 40-50 cm** minus **1.

本文言語English
ページ(範囲)529-530
ページ数2
ジャーナルPhysica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
148
1-3
出版ステータスPublished - 1987 12 1
外部発表はい
イベントProc of the Yamada Conf XVIII on Supercond in Highly Correl Fermion Syst - Sendai, Jpn
継続期間: 1987 8 311987 9 3

ASJC Scopus subject areas

  • Engineering(all)

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