SANS measurements of liquid and amorphous selenium

M. Inui, S. Takeda, K. Maruyama, Y. Kawakita, S. Tamaki, M. Imai

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Small-angle neutron scattering (SANS) measurements have been carried out for liquid (1-) and amorphous (a-) Se to investigate the temperature dependence of the structure in l-Se consisting of chain molecules. SANS intensity, I(Q), was observed in a Q range from 0.005 to 0.04 Å-1 and I(Q) of a-Se was about an order of magnitude larger than that of l-Se. In both spectra, log I(Q) shows a linear dependence for log Q. The gradient for l-Se is about - 2.5 at 500°C. With decreasing temperature, to the supercooled state, the gradient becomes close to -3, which is the value for a-Se. These results suggest the existence of clusters in l-Se derived from density fluctuations.

Original languageEnglish
Pages (from-to)552-554
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Volume213-214
Issue numberC
DOIs
Publication statusPublished - 1995 Aug 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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