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Updated: Jan 18, 2026
07:24
Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
Published on: May 10, 2021
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Dirac Point in the Charge Compensated Single-Crystal Ru3Sn7.
Xiaoyu Ji1,2, Xuebo Zhou2, Shilin Zhu2
1Department of Physics, Liaoning University, Shenyang 110036, China.
Materials (Basel, Switzerland)
|September 13, 2025
Summary
Ruthenium tin (Ru3Sn7) exhibits metallic behavior and a compensated two-band system. This study reveals two Dirac points in its band structure, suggesting a potential Lifshitz transition.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Solid-State Chemistry
Background:
- Ru3Sn7 belongs to the T3X7 intermetallic family, known for diverse electronic ground states.
- Previous research focused on crystal structure and basic properties, leaving transport phenomena less explored.
Purpose of the Study:
- To conduct a systematic investigation of high-quality Ru3Sn7 single crystals.
- To explore topology-property relationships in T3X7 intermetallics.
Main Methods:
- Single crystal growth.
- Electrical resistivity, Hall effect, specific heat, and thermal transport measurements.
- Analysis of magnetic quantum oscillations.
Main Results:
- Ru3Sn7 exhibits metallic behavior with a compensated electron-hole two-band system.
- Evidence suggests a possible Lifshitz transition due to temperature-dependent electronic state modulation.
- Observation of magnetic quantum oscillations confirms two Dirac points in the band structure.
Conclusions:
- Ru3Sn7 presents a promising material for studying topological electronic properties.
- The confirmed Dirac points highlight its potential for novel quantum phenomena and applications.
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