  We propose a mechanism to directly measure the chiral anomaly in disorder
Weyl semimetals (WSMs) by the Kondo effect. We find that in a magnetic and
electric field driven WSM, the locations of the Kondo peaks can be modulated by
the chiral chemical potential, which is proportional to $\mathbf{E}\cdot
\mathbf{B}$. The Kondo peaks come from spin fluctuations within the impurities,
which apart from the temperature, relate closely to the host's Fermi level. In
WSMs, the chiral-anomaly-induced chirality population imbalance will shift the
local Fermi levels of the paired Weyl valleys toward opposite directions in
energy, and then affects the Kondo effect. Consequently, the Kondo effect can
be tunable by an external electric field via the chiral chemical potential.
This is unique to the chiral anomaly. Base on this, we argue that the
electrically tunable Kondo effect can serve as a direct measurement of the
chiral anomaly in WSMs. The Kondo peaks are robust against the disorder effect
and therefore, the signal of the chiral anomaly survives for a relatively weak
magnetic field.
