论文标题
室温非线性大厅效应和无线RF矫正Weyl半养老金4
Room temperature nonlinear Hall effect and wireless RF rectification in Weyl semimetal TaIrTe4
论文作者
论文摘要
可以在没有任何磁场的情况下产生横向电压的非线性霍尔效应（NLHE），是整流或频率加倍的潜在替代方法。但是，NLHE的低温检测限制了其应用。在这里，我们报告了II型Weyl半学tairte4中的室温NLHE，该tairte4构成了强大的nlhe，这是由于大量的倒置对称性和在费米级重叠的大带重叠。我们还观察到Tairte4中NLHE的温度诱导的符号反转。我们的理论计算表明，观察到的符号反转是温度引起的化学势变化的结果，表明NLHE与费米表面的电子结构直接相关。最后，利用了Tairte4中的室温NLHE，以证明具有零外部偏置和磁场的无线射频整流。这项工作为实现基于Weyl半学中NLHE的室温应用打开了大门。
The nonlinear Hall effect (NLHE), which can produce a transverse voltage without any magnetic field, is a potential alternative for rectification or frequency doubling. However, the low temperature detection of NLHE limits its applications. Here, we report the room-temperature NLHE in a type-II Weyl semimetal TaIrTe4, which hosts a robust NLHE due to substantial broken inversion symmetry and large band overlapping at the Fermi level. We also observe a temperature-induced sign inversion of NLHE in TaIrTe4. Our theoretical calculations suggest that the observed sign inversion is a result of temperature-induced shift in the chemical potential indicating a direct correlation of NLHE with the electronic structure at the Fermi surface. Finally, the room-temperature NLHE in TaIrTe4 is exploited to demonstrate the wireless 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.
