Orbital anomalous Hall effect in the few-layer Weyl semimetal TaIrTe4
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arXiv
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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866909415166181376 |
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| author | Wang, An-Qi Li, Dong Zhao, Tong-Yang Liu, Xing-Yu Zhang, Jiantian Liao, Xin Yin, Qing Pan, Zhen-Cun Yu, Peng Liao, Zhi-Min |
| author_facet | Wang, An-Qi Li, Dong Zhao, Tong-Yang Liu, Xing-Yu Zhang, Jiantian Liao, Xin Yin, Qing Pan, Zhen-Cun Yu, Peng Liao, Zhi-Min |
| contents | We report on the observation of the linear anomalous Hall effect (AHE) in the nonmagnetic Weyl semimetal TaIrTe4. This is achieved by applying a direct current Idc and an alternating current Iac (Iac<<Idc) in TaIrTe4, where the former induces time-reversal symmetry breaking and the latter probes the triggered AHE. The anomalous Hall resistance VacH/Iac shows a linear dependence on Idc and changes sign with the polarity of Idc. In temperature-dependent measurements, VacH/Iac also experiences a sign reversal at 100 K, consistent with the temperature-dependent nonlinear Hall effect (NLHE). Furthermore, in measurements involving only dc transport, the dc Hall voltage exhibits a quadratic relationship with Idc. When the Idc direction is reversed, the Hall resistance changes sign, demonstrating a colossal nonreciprocal Hall effect (NRHE). Our theoretical calculations suggest that the observed linear AHE, NLHE, and NRHE all dominantly originate from the current-induced orbital magnetization compared to the minor spin contribution. This work provides deep insights into the orbital magnetoelectric effect and nonlinear Hall response, promising precise electric control of out-of-plane polarized orbit flow. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02937 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Orbital anomalous Hall effect in the few-layer Weyl semimetal TaIrTe4 Wang, An-Qi Li, Dong Zhao, Tong-Yang Liu, Xing-Yu Zhang, Jiantian Liao, Xin Yin, Qing Pan, Zhen-Cun Yu, Peng Liao, Zhi-Min Mesoscale and Nanoscale Physics Materials Science We report on the observation of the linear anomalous Hall effect (AHE) in the nonmagnetic Weyl semimetal TaIrTe4. This is achieved by applying a direct current Idc and an alternating current Iac (Iac<<Idc) in TaIrTe4, where the former induces time-reversal symmetry breaking and the latter probes the triggered AHE. The anomalous Hall resistance VacH/Iac shows a linear dependence on Idc and changes sign with the polarity of Idc. In temperature-dependent measurements, VacH/Iac also experiences a sign reversal at 100 K, consistent with the temperature-dependent nonlinear Hall effect (NLHE). Furthermore, in measurements involving only dc transport, the dc Hall voltage exhibits a quadratic relationship with Idc. When the Idc direction is reversed, the Hall resistance changes sign, demonstrating a colossal nonreciprocal Hall effect (NRHE). Our theoretical calculations suggest that the observed linear AHE, NLHE, and NRHE all dominantly originate from the current-induced orbital magnetization compared to the minor spin contribution. This work provides deep insights into the orbital magnetoelectric effect and nonlinear Hall response, promising precise electric control of out-of-plane polarized orbit flow. |
| title | Orbital anomalous Hall effect in the few-layer Weyl semimetal TaIrTe4 |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2412.02937 |