دورية أكاديمية
Orbital-selective charge-density wave in TaTe4
| العنوان: | Orbital-selective charge-density wave in TaTe4 |
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| المؤلفون: | R. Z. Xu, X. Du, J. S. Zhou, X. Gu, Q. Q. Zhang, Y. D. Li, W. X. Zhao, F. W. Zheng, M. Arita, K. Shimada, T. K. Kim, C. Cacho, Y. F. Guo, Z. K. Liu, Y. L. Chen, L. X. Yang |
| المصدر: | npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Atomic physics. Constitution and properties of matter |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492, Atomic physics. Constitution and properties of matter, QC170-197 |
| الوصف: | Abstract TaTe4, a metallic charge-density wave (CDW) material discovered decades ago, has attracted renewed attention due to its rich interesting properties, such as pressure-induced superconductivity and candidate nontrivial topological phase. Here, using high-resolution angle-resolved photoemission spectroscopy and ab initio calculation, we systematically investigate the electronic structure of TaTe4. At 26 K, we observe a CDW gap as large as 290 meV, which persists up to 500 K. The CDW-modulated band structure shows a complex reconstruction that closely correlates with the lattice distortion. Inside the CDW gap, there exist highly dispersive energy bands contributing to the remnant Fermi surface and metallic behavior in the CDW state. Interestingly, our ab initio calculation reveals that the large CDW gap mainly opens in the electronic states with out-of-plane orbital components, while the in-gap metallic states originate from in-plane orbitals, suggesting an orbital texture that couples with the CDW order. Our results shed light on the interplay between electron, lattice, and orbital in quasi-one-dimensional CDW materials. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2397-4648 |
| Relation: | https://doaj.org/toc/2397-4648 |
| DOI: | 10.1038/s41535-023-00573-8 |
| URL الوصول: | https://doaj.org/article/e8ddf12b35d943419c8247041ec278ff |
| رقم الأكسشن: | edsdoj.8ddf12b35d943419c8247041ec278ff |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 23974648 |
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| DOI: | 10.1038/s41535-023-00573-8 |