NdAlSi: a magnetic Weyl semimetal candidate with rich magnetic phases and atypical transport properties
| Autor: | Wang, Jin-Feng, Dong, Qing-Xin, Guo, Zhao-Peng, Lv, Meng, Huang, Yi-Fei, Xiang, Jun-Sen, Ren, Zhi-An, Wang, Zhi-Jun, Sun, Pei-Jie, Li, Gang, Chen, Gen-Fu |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | Magnetic Weyl semimetals (MWSM) have attracted significant attention due to their intriguing physical properties and potential applications in spin-electronic devices. Here we report the characterization of NdAlSi including transport, magnetization, and heat capacity on single crystals, as well as band structure calculation. It is a newly proposed MWSM candidate which breaks both time-reversal and spacial inversion symmetries. A temperature-magnetic field phase diagram is experimentally established. Remarkably, on the angular magnetoresistance (AMR), a two-fold symmetric sharp peak instead of a smooth variation is observed in the field-induced ferrimagnetic phase. We argue that the tunability of both the topological and magnetic properties in NdAlSi is crucial for realizing such a behavior. Our results indicate that 4f-electron-based MWSM can provide a unique platform to explore new and intriguing quantum phenomena arising from the interaction between magnetism and topology. Comment: 24 pages, 12 figures |
| Databáze: | arXiv |
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