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Résumé |
After a general introduction to the chiral magnetic effect in Weyl semimetals, I discuss a new kind of chiral
magnetic current which is present even in the absence of an externally applied electric field. It is instead
driven by non equilibrium pumping of non-chiral charges (electrons) into the band structure of an asymmetric
Weyl semimetal, which is a Weyl semimetal with an asymmetry in the dispersion relations of the left and right
chiralities. After presenting the derivation of the current from chiral kinetic theory, I will discuss a proposed
experimental setup to measure the nonequilibrium chiral magnetic current. I will conclude by arguing that the
effect should be present in generic band structures with asymmetric dispersion relations, and discuss a
candidate material. |
