Room-temperature nonlinear Hall effect and wireless radiofrequency rectification in Weyl semimetal TaIrTe4
- 25 January 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Nanotechnology
- Vol. 16 (4), 421-425
- https://doi.org/10.1038/s41565-020-00839-3
Abstract
The nonlinear Hall effect (NLHE), the phenomenon in which a transverse voltage can be produced without a magnetic field, provides a potential alternative for rectification or frequency doubling1,2. However, the low-temperature detection of the NLHE limits its applications3,4. Here, we report the room-temperature NLHE in a type-II Weyl semimetal TaIrTe4, which hosts a robust NLHE due to broken inversion symmetry and large band overlapping at the Fermi level. We also observe a temperature-induced sign inversion of the NLHE in TaIrTe4. Our theoretical calculations suggest that the observed sign inversion is a result of a temperature-induced shift in the chemical potential, indicating a direct correlation of the NLHE with the electronic structure at the Fermi surface. Finally, on the basis of the observed room-temperature NLHE in TaIrTe4 we demonstrate the wireless radiofrequency (RF) rectification with zero external bias and magnetic field. This work opens a door to realizing room-temperature applications based on the NLHE in Weyl semimetals.Keywords
Funding Information
- National Cheng Kung University (MOST109-2636-M-006-002)
- NCTS | Physics Division, National Center for Theoretical Sciences (MOST107-2627-E-006-001)
- Sun Yat-sen University (29000-18841216, 29000-31610036)
- Singapore Ministry of Education
- Singapore Ministry of Education
- Agency for Science, Technology and Research (18A6b0057)
- Singapore Ministry of Education
This publication has 31 references indexed in Scilit:
- High-frequency rectification via chiral Bloch electronsScience Advances, 2020
- The Hall effect goes nonlinearNature Reviews Materials, 2019
- Nonlinear anomalous Hall effect in few-layer WTe2Nature Materials, 2019
- Band Signatures for Strong Nonlinear Hall Effect in BilayerPhysical Review Letters, 2018
- Observation of the nonlinear Hall effect under time-reversal-symmetric conditionsNature, 2018
- Geometric Hall effects in topological insulator heterostructuresNature Physics, 2016
- Quantum Nonlinear Hall Effect Induced by Berry Curvature Dipole in Time-Reversal Invariant MaterialsPhysical Review Letters, 2015
- Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayersNature Physics, 2015
- Berry phase effects on electronic propertiesReviews of Modern Physics, 2010
- Anomalous Hall effectReviews of Modern Physics, 2010