From Stoner to Local Moment Magnetism in Atomically Thin Cr2Te3
Abstract/Contents
- Abstract
- The field of two-dimensional (2D) ferromagnetism has been proliferating over the past few years, with ongoing interests in basic science and potential applications in spintronic technology. However, a high-resolution spectroscopic study of the 2D ferromagnet is still lacking due to the small size and air sensitivity of the exfoliated nanoflakes. Here, we report a thickness-dependent ferromagnetism in epitaxially grown Cr2Te3 thin films and investigate the evolution of the underlying electronic structure by synergistic angle-resolved photoemission spectroscopy, scanning tunneling microscopy, x-ray absorption spectroscopy, and first-principle calculations. A conspicuous ferromagnetic transition from Stoner to Heisenberg-type is directly observed in the atomically thin limit, indicating that dimensionality is a powerful tuning knob to manipulate the novel properties of 2D magnetism. Monolayer Cr2Te3 retains robust ferromagnetism, but with a suppressed Curie temperature, due to the drastic drop in the density of states near the Fermi level. Our results establish atomically thin Cr2Te3 as an excellent platform to explore the dual nature of localized and itinerant ferromagnetism in 2D magnets.
Description
| Type of resource | Dataset, still image |
|---|---|
| Date created | June 11, 2023 |
| Publication date | June 11, 2023; June 11, 2023 |
Creators/Contributors
| Author | Zhong, Yong | |
|---|---|---|
| Author | Peng, Cheng | |
| Author | Huang, Haili | |
| Author | Guan, Dandan | |
| Author | Hwang, Jinwoong | |
| Author | Hsu, Kuan H. | |
| Author | Hu, Yi | |
| Author | Jia, Chunjing | |
| Author | Moritz, Brian | |
| Author | Lu, Donghui | |
| Author | Lee, Jun-Sik | |
| Author | Jia, Jin-Feng | |
| Author | Devereaux, Thomas P. | |
| Author | Mo, Sung-Kwan | |
| Author | Shen, Zhi-Xun |
Subjects
| Subject | Ferromagnetism |
|---|---|
| Subject | Two-dimensional magnets |
| Subject | Photoemission |
| Genre | Data |
| Genre | Database |
| Genre | Image |
| Genre | Data sets |
| Genre | Dataset |
| Genre | Databases |
Bibliographic information
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- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under a Creative Commons Attribution 4.0 International license (CC BY).
Preferred citation
- Preferred citation
- Zhong, Y., Peng, C., Huang, H., Guan, D., Hwang, J., Hsu, K., Hu, Y., Jia, C., Moritz, B., Lu, D., Lee, J., Jia, J., Devereaux, T., Mo, S., and Shen, Z. (2023). From Stoner to Local Moment Magnetism in Atomically Thin Cr2Te3. Stanford Digital Repository. Available at https://purl.stanford.edu/nf616ft8456. https://doi.org/10.25740/nf616ft8456.
Collection
Stanford Research Data
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- Contact
- ylzhong@stanford.edu
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