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

N. Kuroda, F. Chida, Y. Sasaki, Y. Nishina, M. Kikuchi, Ayako Yamamoto, Y. Syono

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)529-530
Number of pages2
JournalPhysica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
Volume148
Issue number1-3
Publication statusPublished - 1987 Dec
Externally publishedYes

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Infrared absorption
Polyethylenes
Energy gap
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

FAR-INFRARED ABSORPTION BY SMALL PARTICLES OF YBa//2Cu//3O//6//. //7//4. / Kuroda, N.; Chida, F.; Sasaki, Y.; Nishina, Y.; Kikuchi, M.; Yamamoto, Ayako; Syono, Y.

In: Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics, Vol. 148, No. 1-3, 12.1987, p. 529-530.

Research output: Contribution to journalArticle

Kuroda, N. ; Chida, F. ; Sasaki, Y. ; Nishina, Y. ; Kikuchi, M. ; Yamamoto, Ayako ; Syono, Y. / FAR-INFRARED ABSORPTION BY SMALL PARTICLES OF YBa//2Cu//3O//6//. //7//4. In: Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics. 1987 ; Vol. 148, No. 1-3. pp. 529-530.
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