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Diffusion in solids studied by nuclear resonant X-ray and neutron scattering
Martin Kaisermayr1, Bogdan Sepiol, Jerome Combet
1Institut für Materialphysik der Universität Wien, A-1090 Wien, Austria. kaiserm@ap.univie.ac.at
Journal of Synchrotron Radiation
|July 2, 2002
Summary
Nuclear resonant scattering and quasielastic neutron scattering measure atomic jump dynamics in solids. These techniques offer complementary insights into diffusion mechanisms, particularly in intermetallic alloys.
Area of Science:
- Solid-state physics
- Materials science
- Atomic diffusion studies
Background:
- Understanding atomic diffusion in solids is crucial for material properties.
- Traditional methods have limitations in characterizing atomic jump dynamics.
- Nuclear resonant scattering and quasielastic neutron scattering offer advanced capabilities.
Purpose of the Study:
- To compare nuclear resonant scattering and quasielastic neutron scattering for studying atomic diffusion.
- To highlight the synergies and advantages of each technique.
- To illustrate their application with a focus on diffusion in intermetallic alloys.
Main Methods:
- Utilizing nuclear resonant scattering of synchrotron radiation to probe atomic motion.
- Employing quasielastic neutron scattering for detailed analysis of atomic jumps.
- Applying both techniques to investigate diffusion in intermetallic alloy systems.
Main Results:
- Both methods successfully measure atomic jump frequencies, directions, and lengths.
- Demonstrated complementary information obtained from each technique.
- Provided insights into diffusion mechanisms within intermetallic alloys.
Conclusions:
- Nuclear resonant scattering and quasielastic neutron scattering are powerful, complementary tools for studying atomic diffusion.
- These techniques provide detailed characterization of atomic jump dynamics in solids.
- Their application to intermetallic alloys showcases their utility in materials research.