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Paper   IPM / Nano-Sciences / 15874
School of Nano Science
  Title:   Chiral Hall effect in strained Weyl semimetals
1.  Shiva Heidari
2.  Reza Asgari
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  101
  Year:  2020
  Pages:   165309
  Publisher(s):   American Physical Society
  Supported by:  IPM
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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