Laser-driven switching dynamics in phase change materials investigated by time-resolved X-ray absorption spectroscopy

Jos E. Boschker, Rui Ning Wang, Valeria Bragaglia, Paul Fons, Alessandro Giussani, Loic Le Guyader, Martin Beye, Ilie Radu, Alexander V. Kolobov, Karsten Holldack, Raffaella Calarco

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Time-dependent X-ray absorption spectroscopy at the Ge L3 edge is used to study the optical switching dynamics of epitaxial phase change materials grown on Si(111) membranes. Small differences between the static absorption spectra of the crystalline and laser-amorphized phase of GeTe are observed. Furthermore, a new approach for pump-probe studies on phase change materials is presented. However, no time-dependent change in the X-ray absorption > 0.1% has been detected so far. This is mainly attributed to sample deterioration at 3 kHz pump-probe rates.

本文言語English
ページ(範囲)82-89
ページ数8
ジャーナルPhase Transitions
88
1
DOI
出版ステータスPublished - 2015 1 2
外部発表はい

ASJC Scopus subject areas

  • 器械工学
  • 材料科学(全般)

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