Exploring Native Atomic Defects in NiTe2
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2022
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866918411312824320 |
|---|---|
| author | Wang, Wen-Xiao Li, Kaihui Dong, Xiaoshan Xie, Hao Qiu, Jinglan Xu, Chunqiang Liu, Kai Song, Juntao Wei, Yi-Wen Bai, Ke-Ke Xu, Xiaofeng Liu, Ying |
| author_facet | Wang, Wen-Xiao Li, Kaihui Dong, Xiaoshan Xie, Hao Qiu, Jinglan Xu, Chunqiang Liu, Kai Song, Juntao Wei, Yi-Wen Bai, Ke-Ke Xu, Xiaofeng Liu, Ying |
| contents | Nickel ditelluride (NiTe2), a new discovered type-II Dirac semimetal whose Dirac node lies close to its Fermi level, is expected to exhibit exotic phenomena including Lifshitz transition and superconductivity. As we know, defects are inevitable for transition metal dichalcogenides and have significant impacts on the optical and electronic properties. However, the systematic study of defects in NiTe2 is still lack. Here, by using high-resolution scanning tunneling microscopy combined with first-principles calculations, the point defects including the vacancy, intercalation and antisite defects in NiTe2 are systematically investigated. We identified five main types native defects and revealed that the growth condition could affect the type of native defects. By controlling the ratio of ingredient during synthesis, the types of point defects are expected to be manipulated, especially antisite defects. Additionally, we find native defects could slightly dope the topological surface states. Our results provide a facile way to manipulate defects for future optimizing the electronic properties of NiTe2 and other related materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2201_00294 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Exploring Native Atomic Defects in NiTe2 Wang, Wen-Xiao Li, Kaihui Dong, Xiaoshan Xie, Hao Qiu, Jinglan Xu, Chunqiang Liu, Kai Song, Juntao Wei, Yi-Wen Bai, Ke-Ke Xu, Xiaofeng Liu, Ying Materials Science Mesoscale and Nanoscale Physics Nickel ditelluride (NiTe2), a new discovered type-II Dirac semimetal whose Dirac node lies close to its Fermi level, is expected to exhibit exotic phenomena including Lifshitz transition and superconductivity. As we know, defects are inevitable for transition metal dichalcogenides and have significant impacts on the optical and electronic properties. However, the systematic study of defects in NiTe2 is still lack. Here, by using high-resolution scanning tunneling microscopy combined with first-principles calculations, the point defects including the vacancy, intercalation and antisite defects in NiTe2 are systematically investigated. We identified five main types native defects and revealed that the growth condition could affect the type of native defects. By controlling the ratio of ingredient during synthesis, the types of point defects are expected to be manipulated, especially antisite defects. Additionally, we find native defects could slightly dope the topological surface states. Our results provide a facile way to manipulate defects for future optimizing the electronic properties of NiTe2 and other related materials. |
| title | Exploring Native Atomic Defects in NiTe2 |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2201.00294 |