SANS measurements of liquid and amorphous selenium

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

doi:10.1016/0921-4526(95)00208-Q

SANS measurements of liquid and amorphous selenium

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

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	552-554
Number of pages	3
Journal	Physica B: Physics of Condensed Matter
Volume	213-214
Issue number	C
DOIs	https://doi.org/10.1016/0921-4526(95)00208-Q
Publication status	Published - 1995 Aug 1
Externally published	Yes

ASJC Scopus subject areas

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

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10.1016/0921-4526(95)00208-Q

Cite this

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title = "SANS measurements of liquid and amorphous selenium",

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 {\AA}-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.",

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T1 - SANS measurements of liquid and amorphous selenium

AU - Inui, M.

AU - Takeda, S.

AU - Maruyama, K.

AU - Kawakita, Y.

AU - Tamaki, S.

AU - Imai, M.

PY - 1995/8/1

Y1 - 1995/8/1

N2 - 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.

AB - 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.

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SANS measurements of liquid and amorphous selenium

Abstract

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