Raman scattering study on fractal structures in YSZ

H. Yugami; S. Matsuo; M. Ishigame

doi:10.1016/0167-2738(92)90323-H

Raman scattering study on fractal structures in YSZ

H. Yugami, S. Matsuo, M. Ishigame

ENG - Mechanical Systems Engineering

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

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Abstract

Low-frequency Raman scattering spectra in yttria-stabilized zirconia (YSZ) were measured on several samples with different compositions. It is found that the frequency dependence of the Raman intensity can be represented by two straight lines with different slopes on a log-log scale. Since the slope in the lower-frequency region obeys a ω⁴ law, the region below the crossover frequency ω_co is assigned to the "phonon region". On the other hand, Raman spectra above ω_co cannot be explained by a Debye model, but can be interpreted in terms of a fracton model. The fractal and fracton dimensionalities are estimated in this system.

Original language	English
Pages (from-to)	1264-1268
Number of pages	5
Journal	Solid State Ionics
Volume	53-56
Issue number	PART 2
DOIs	https://doi.org/10.1016/0167-2738(92)90323-H
Publication status	Published - 1992 Jan 1

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Raman scattering study on fractal structures in YSZ",

abstract = "Low-frequency Raman scattering spectra in yttria-stabilized zirconia (YSZ) were measured on several samples with different compositions. It is found that the frequency dependence of the Raman intensity can be represented by two straight lines with different slopes on a log-log scale. Since the slope in the lower-frequency region obeys a ω4 law, the region below the crossover frequency ωco is assigned to the {"}phonon region{"}. On the other hand, Raman spectra above ωco cannot be explained by a Debye model, but can be interpreted in terms of a fracton model. The fractal and fracton dimensionalities are estimated in this system.",

author = "H. Yugami and S. Matsuo and M. Ishigame",

year = "1992",

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doi = "10.1016/0167-2738(92)90323-H",

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T1 - Raman scattering study on fractal structures in YSZ

AU - Yugami, H.

AU - Matsuo, S.

AU - Ishigame, M.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - Low-frequency Raman scattering spectra in yttria-stabilized zirconia (YSZ) were measured on several samples with different compositions. It is found that the frequency dependence of the Raman intensity can be represented by two straight lines with different slopes on a log-log scale. Since the slope in the lower-frequency region obeys a ω4 law, the region below the crossover frequency ωco is assigned to the "phonon region". On the other hand, Raman spectra above ωco cannot be explained by a Debye model, but can be interpreted in terms of a fracton model. The fractal and fracton dimensionalities are estimated in this system.

AB - Low-frequency Raman scattering spectra in yttria-stabilized zirconia (YSZ) were measured on several samples with different compositions. It is found that the frequency dependence of the Raman intensity can be represented by two straight lines with different slopes on a log-log scale. Since the slope in the lower-frequency region obeys a ω4 law, the region below the crossover frequency ωco is assigned to the "phonon region". On the other hand, Raman spectra above ωco cannot be explained by a Debye model, but can be interpreted in terms of a fracton model. The fractal and fracton dimensionalities are estimated in this system.

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U2 - 10.1016/0167-2738(92)90323-H

DO - 10.1016/0167-2738(92)90323-H

M3 - Article

AN - SCOPUS:0026896394

SN - 0167-2738

VL - 53-56

SP - 1264

EP - 1268

JO - Solid State Ionics

JF - Solid State Ionics

IS - PART 2

ER -

Raman scattering study on fractal structures in YSZ

Abstract

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