Decoupling intranode and internode scattering in Weyl fermions

نویسندگان

چکیده

A series of recent papers have claimed that intranode scattering, alone, can contribute to positive longitudinal magnetoconductance (LMC) due chiral anomaly (CA) in Weyl semimetals (WSMs). We revisit the problem CA induced LMC WSMs, and show by itself, does not result enhancement LMC. In limit zero internode charge must remain conserved, which is shown actually decrease Only presence a non-zero scattering (however weak), one obtains non-conservation charge. Even weak suffices generating LMC, since it redistributes charges across both nodes, although on time scale larger than scattering. Furthermore, our calculations reveal that, contrast works, inhomogeneous WSMs strain axial magnetic field $B_5$, leads negative planar Hall conductance.

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ژورنال

عنوان ژورنال: Physical review

سال: 2023

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevb.107.115161