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Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
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Giant spin Seebeck effect in two-dimensional ferromagnetic CrI3 monolayer
Brahim Marfoua1, Imran Khan1, Jisang Hong1
1Department of Physics, Pukyong National University, Busan 48513, Korea.
Nanotechnology
|May 21, 2020
Summary
Researchers explored the spin Seebeck effect (SSE) in 2D ferromagnetic CrI3. They discovered a giant SSE, significantly outperforming bulk materials for spin caloritronics applications.
Area of Science:
- Condensed matter physics
- Materials science
- Spintronics
Background:
- The spin Seebeck effect (SSE) is crucial for spin caloritronics, enabling potential applications in spin thermoelectric modulators.
- Current spin current generation performance is limited by the low yield of the SSE in bulk materials.
- Research on SSE in pure two-dimensional (2D) ferromagnetic materials is lacking.
Purpose of the Study:
- To investigate the SSE in 2D ferromagnetic chromium triiodide (CrI3).
- To evaluate the potential of 2D CrI3 for enhanced spin caloritronics applications.
Main Methods:
- Utilized the Boltzmann transport approach.
- Incorporated diffusive scattering mechanisms in the calculations.
Main Results:
- Achieved a giant effective spin Seebeck effect (SSE) of 1450 μV K-1 in 2D CrI3.
- Observed SSE values 4-5 times greater than those reported for bulk systems.
Conclusions:
- 2D CrI3 exhibits a significantly enhanced SSE compared to bulk materials.
- This finding suggests 2D CrI3 as a promising material for advancing spin caloritronics and 2D material applications.
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