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Structural study on optical recording materials Ge$$_{2}$$Sb$$_{2+x}$$Te$$_{5}$$ and GeBi$$_{2}$$Te$$_{4}$$

Shamoto, Shinichi  ; Yamada, Noboru*; Matsunaga, Toshiyuki*; Proffen, T.*

Crystal structures of optical recording materials Ge$$_{2}$$Sb$$_{2+x}$$Te$$_{5}$$ and GeBi$$_{2}$$Te$$_{4}$$ have been studied in terms of the fast phase transition mechanism by both of real and reciprocal space Rietveld analyses of pulsed neutron powder diffraction data. These crystalline phases had large local lattice distortions. In addition, the crystallite size of GeBi$$_{2}$$Te$$_{4}$$ was very small (about 150${AA}$). These results suggest that the similarity of entropy between crystalline and amorphous phases plays an important role in terms of the fast phase transition mechanisms.

Language

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English

Journal

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Physica B; Condensed Matter

Volume

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385-386

Number

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1

Pages

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p.574 - 577

Publication Year/Month

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2006/11

Meeting title

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8th International Conference on Neutron Scattering (ICNS 2005)

Held date

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2005/11

Location (city)

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Sydney

Location (country)

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Australia

Patent information

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PDF

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Paper URL

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https://doi.org/10.1016/j.physb.2006.05.363

DOI for research data

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Keywords

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no keyword

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

InCites™

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Percentile:27.22

Category:Physics, Condensed Matter

Altmetrics

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