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Updated: Aug 15, 2026
10:51
The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Promoter-driven recrystallization affording highly textured ruthenium
Youngchul Leem1, Yoonhoo Ha1, Young-Min Lee1
1Advanced Device Platform, Samsung Advanced Institute of Technology, Gyeonggi, Republic of Korea.
Science (New York, N.Y.)
|August 13, 2026
Summary
Trace carbon addition to ruthenium polycrystals promotes grain boundary migration, enabling controlled orientation and advanced material design. This method offers a versatile strategy for engineering polycrystalline materials.
Area of Science:
- Materials Science
- Solid State Physics
- Nanotechnology
Background:
- Electrical properties of polycrystalline materials depend on crystallite arrangement.
- Previous research focused on high-purity materials and epitaxial growth.
- Controlling grain boundaries is key for material performance.
Purpose of the Study:
- To develop a novel method for growing ruthenium polycrystals with controlled grain orientation.
- To investigate the role of trace elements in grain boundary engineering.
- To provide insights into atomic migration during recrystallization.
Main Methods:
- Growth of ruthenium polycrystals on amorphous dielectric substrates.
- Utilizing trace carbon as a transient promoter at grain boundaries.
- Analysis of crystallite orientation and grain boundary characteristics.
Main Results:
- Achieved near-complete out-of-plane preferred orientation and low-energy grain boundaries.
- Demonstrated that trace carbon facilitates atomic migration by creating transient free volume.
- Observed dynamic vertical and horizontal grain orientation driven by carbon promotion.
Conclusions:
- Trace element incorporation offers a versatile strategy for engineering grain boundary kinetics.
- The developed method enables advanced material design for polycrystalline materials.
- Microscopic insights into grain boundary dynamics were provided.
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