X-ray fluorescence holographic study on a single-crystal thin film of a rewritable optical media

S. Hosokawa, K. Hayashi, N. Happo, K. Horii, T. Ozaki, P. Fons, A. V. Kolobov, J. Tominaga

研究成果: Conference contribution

抄録

In this article, we discuss X-ray fluorescence holography (XFH) using a third-generation synchrotron radiation facility through an application to a DVD-RAM material thin film. Three-dimensional atomic images were obtained at 100 K around the Ge atoms in a Ge2Sb2Te5 single-crystal thin film by means of XFH technique at the beamline BL37XU of the SPring-8 to clarify the high-speed writing and erasing mechanism of this DVD material. From the obtained XFH images, it was concluded that the single-crystal thin film has a mixture of rocksalt and zinc-blende structures. In addition, the images indicate large distortions associated with the existence of vacancies of the Ge(Sb) site. The present XFH results are in good agreement with the previous XAFS results, which has predicted a phase transition due to an umbrella flip motion of the Ge atoms.

本文言語English
ホスト出版物のタイトルSYNCHROTRON RADIATION INSTRUMENTATION
ホスト出版物のサブタイトルNinth International Conference on Synchrotron Radiation Instrumentation
ページ1309-1312
ページ数4
DOI
出版ステータスPublished - 2007 3 26
外部発表はい
イベントSYNCHROTRON RADIATION INSTRUMENTATION: 9th International Conference on Synchrotron Radiation Instrumentation - Daegu, Korea, Republic of
継続期間: 2006 5 282006 6 28

出版物シリーズ

名前AIP Conference Proceedings
879
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

ConferenceSYNCHROTRON RADIATION INSTRUMENTATION: 9th International Conference on Synchrotron Radiation Instrumentation
国/地域Korea, Republic of
CityDaegu
Period06/5/2806/6/28

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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