تقرير
Current jetting distorted planar Hall effect in a Weyl semimetal with ultrahigh mobility
| العنوان: | Current jetting distorted planar Hall effect in a Weyl semimetal with ultrahigh mobility |
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| المؤلفون: | Yang, J., Zhen, W. L., Liang, D. D., Wang, Y. J., Yan, X., Weng, S. R., Wang, J. R., Tong, W., Pi, L., Zhu, W. K., Zhang, C. J. |
| المصدر: | Phys. Rev. Materials 3, 014201 (2019) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | A giant planar Hall effect (PHE) and anisotropic magnetoresistance (AMR) is observed in TaP, a nonmagnetic Weyl semimetal with ultrahigh mobility. The perpendicular resistivity (i.e., the planar magnetic field applied normal to the current) far exceeds the zero-field resistivity, which thus rules out the possible origin of negative longitudinal magnetoresistance. The giant PHE/AMR is finally attributed to the large anisotropic orbital magnetoresistance that stems from the ultrahigh mobility. Furthermore, the mobility-enhanced current jetting effects are found to strongly deform the line shape of the curves, and their evolution with the changing magnetic field and temperature is also studied. Although the giant PHE/AMR suggests promising applications in spintronics, the enhanced current jetting shows the other side of the coin, which needs to be considered in the future device design. Comment: Physical Review Materials |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.3.014201 |
| URL الوصول: | http://arxiv.org/abs/1807.06229 |
| رقم الأكسشن: | edsarx.1807.06229 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevMaterials.3.014201 |
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