- Physical Review Journals
All JournalsPhysics Magazine

Physical Review B

Export citation

Export citation

Choose format for download:

Download Citation
  • Letter

Fundamental distinction between intrinsic and extrinsic nonlinear thermal Hall effects

Da-Kun Zhou1, Zhi-Fan Zhang1, Xiao-Qin Yu2,*, Zhen-Gang Zhu1,3,4,†, and Gang Su1,4,5,‡

  • 1Theoretical Condensed Matter Physics and Computational Materials Physics Laboratory, College of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 2School of Physics and Electronics, Hunan University, Changsha 410082, China
  • 3School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 4CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
  • 5Kavli Institute of Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

  • *yuxiaoqin@hnu.edu.cn
  • †zgzhu@ucas.ac.cn
  • ‡gsu@ucas.ac.cn
PDF

Phys. Rev. B 105, L201103 – Published 4 May, 2022

DOI: https://doi.org/10.1103/PhysRevB.105.L201103

Abstract

We theoretically investigated the fundamental distinction between the intrinsic and extrinsic nonlinear thermal Hall effects in the presence of disorder at the second-order response to the temperature gradient in terms of the semiclassical Boltzmann equation. We found that, at low temperatures, the intrinsic contribution of the nonlinear thermal Hall conductivity is proportional to the square of temperature, whereas the extrinsic contributions (side jump and skew scattering) are independent of temperature. This distinct dependency on temperature provides an approach to readily distinguish between the intrinsic and extrinsic contributions. Specifically, we analyzed the nonlinear thermal Hall effect for a tilted two-dimensional massive Dirac material. In particular, we showed that when the Fermi energy is located at the Dirac point, the signal is solely from the intrinsic mechanism; when the Fermi energy is higher, the extrinsic contributions are dominant, which are two to three orders of magnitude larger than the intrinsic contribution.

View figure in article

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Phys. Rev. B 105, L201103– Published 4 May, 2022
  • Received 8 October 2021
  • Revised 14 March 2022
  • Accepted 19 April 2022
Crossmark - Check for updates button

©2022 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation