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Updated: Mar 3, 2026
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Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
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Probing Thermal-Induced Strain at Atomic Interfaces via Raman Spectroscopy
Zixiu Cai1, Abhinav Biswas2, Xinyue Chen2
1Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.
Langmuir : the ACS Journal of Surfaces and Colloids
|March 2, 2026
Summary
This study uses Raman spectroscopy to analyze thermal strain at interfaces between graphene and hexagonal boron nitride. Findings reveal temperature-induced strain significantly impacts interfacial thermal behavior in 2D materials.
Area of Science:
- Materials Science
- Nanotechnology
- Solid State Physics
Background:
- Thermal behavior in 2D materials is heavily influenced by interfaces.
- Limited methods exist to probe atomically sharp interfaces in 2D materials.
- Understanding interfacial thermal properties is crucial for nanodevices.
Purpose of the Study:
- To explore thermal-induced strain at graphene/hexagonal boron nitride interfaces.
- To investigate the influence of temperature on interfacial strain.
- To demonstrate Raman spectroscopy's utility in quantifying interfacial strain.
Main Methods:
- Utilized Raman Spectroscopy to analyze graphene and hexagonal boron nitride.
- Varied excitation power and temperature to observe Raman peak shifts.
- Correlated Raman peak shifts with temperature-induced strain.
Main Results:
- Demonstrated the interplay between strain and thermal behavior at interfaces.
- Quantified the effect of temperature-induced strain on graphene's Raman peak position.
- Highlighted the sensitivity of interfacial behavior to interface characteristics.
Conclusions:
- Thermal expansion critically governs interfacial behavior in 2D materials.
- Raman spectroscopy is effective for quantifying strain at various interfaces.
- Findings advance understanding of heat transfer in nanodevices.
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