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Updated: May 29, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Crystallization of the chalcogenide compound Sb8Te3
Kouichi Kifune1, Tomoko Fujita, Yoshiki Kubota
1Faculty of Liberal Arts and Sciences, Osaka Prefecture University, Japan. kifune@las.osakafu-u.ac.jp
Heating an amorphous antimony-tellurium (Sb(8)Te(3)) film induced crystallization into a modulated structure. The modulation period changed continuously with temperature, indicating a dynamic stacking sequence.
Area of Science:
- Materials Science
- Crystallography
- Solid-State Physics
Background:
- Amorphous antimony-tellurium (Sb(8)Te(3)) films are relevant for phase-change memory applications.
- Understanding their crystallization behavior is crucial for device performance.
Purpose of the Study:
- To investigate the crystallization process of sputtered Sb(8)Te(3) films under heating.
- To analyze the structural evolution and modulation characteristics during crystallization.
Main Methods:
- X-ray powder diffraction was employed to study the crystallization.
- Superspace analysis was used to characterize the modulated structure.
Main Results:
- The amorphous Sb(8)Te(3) film crystallized into a homologous Sb-Te structure with modulation along the stacking direction.
- Lattice parameters and modulation period (γ) changed continuously during heating, suggesting a dynamic stacking sequence.
- The modulation period stabilized at a composition-dependent value upon reaching a critical temperature and remained constant upon cooling.
Conclusions:
- The crystallization of Sb(8)Te(3) involves a continuous structural transformation driven by temperature.
- The observed modulation is linked to the atomic composition and exhibits temperature-dependent behavior.
- Superspace analysis provides a robust framework for describing complex modulated structures in Sb-Te systems.
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