Giant nonlinear Hall and wireless rectification effects at room temperature in the elemental semiconductor tellurium.

ABSTRACT: The second-order nonlinear Hall effect (NLHE) in non-centrosymmetric materials has recently drawn intense interest, since its inherent rectification could enable various device applications such as energy harvesting and wireless charging. However, previously reported NLHE systems normally suffer from relatively small Hall voltage outputs and/or low working temperatures. In this study, we report the observation of a pronounced NLHE in tellurium (Te) thin flakes at room temperature. Benefiting from the semiconductor nature of Te, the obtained nonlinear response can be readily enhanced through electrostatic gating, leading to a second-harmonic output at 300 K up to 2.8 mV. By utilizing such a giant NLHE, we further demonstrate the potential of Te as a wireless Hall rectifier within the radiof

SUBMITTER: Cheng B 

PROVIDER: S-EPMC11217359 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature