دورية أكاديمية
From Stoner to local moment magnetism in atomically thin Cr2Te3
| العنوان: | From Stoner to local moment magnetism in atomically thin Cr2Te3 |
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| المؤلفون: | Yong Zhong, Cheng Peng, Haili Huang, Dandan Guan, Jinwoong Hwang, Kuan H. Hsu, Yi Hu, Chunjing Jia, Brian Moritz, Donghui Lu, Jun-Sik Lee, Jin-Feng Jia, Thomas P. Devereaux, Sung-Kwan Mo, Zhi-Xun Shen |
| المصدر: | Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | Science |
| الوصف: | 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2041-1723 81714068 |
| Relation: | https://doaj.org/toc/2041-1723 |
| DOI: | 10.1038/s41467-023-40997-1 |
| URL الوصول: | https://doaj.org/article/4953fc4b81714068897e00f7dc4812a7 |
| رقم الأكسشن: | edsdoj.4953fc4b81714068897e00f7dc4812a7 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20411723 81714068 |
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| DOI: | 10.1038/s41467-023-40997-1 |