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IPM
30
YEARS OLD

“School of Nano-Sciences”

Paper   IPM / Nano-Sciences / 15874
   School of Nano Science
  Title: Chiral Hall effect in strained Weyl semimetals
  Author(s):
1 . Shiva Heidari
2 . Reza Asgari
  Status: Submitted
  Journal:
  Year: 2019
  Supported by: IPM
  Abstract:
In this paper, the chiral Hall effect of strained Weyl semimetals without any external magnetic field is proposed. The electron-phonon coupling emerges in the low-energy fermionic particle through a pseudogauge potential. We show, by using chiral kinetic theory, that the chiral Hall effect emerges as a response of a real time-varying electric field in the presence of the structural distortion and it leads to a spatial chirality and charges separation in the system. We also show that the coupling of the electrons to acoustic phonons as a gapless excitation leads to emerging an optical absorption peak at omega=omega_el where omega_el is defined as a characteristic frequency associated to the pseudomagnetic field.


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