Who: Dr. Alberto Cortijo, Instituto de Ciencia de Materiales, CSIC
Place: Donostia International Physics Center
Date: Wednesday, 7 June 2017, 12:00
In this talk I will review some transport properties in Weyl semimetals that are connected to the geometrical properties of the bandstructure in these systems, like the (now) famous B^2 dependent negative magnetoresistance, observed in these materials. Within this context, I will describe other transport and optical phenomena that were supposed not to be allowed in these materials, like the linear magnetochiral effect. I will describe how this effect also allows for the presence of second order non linear optical responses in inversion symmetric Dirac semimetals under the presence of an external magnetic field.
.D. T. Son and B. Z. Spivak."Chiral anomaly and classical negative magnetoresistance of Weyl metals". Phys. Rev. B 88, 104412 (2013)
. A. A. Zyuzin and A. A. Burkov. "Topological response in Weyl semimetals and the chiral anomaly" Phys. Rev. B 86, 115133 (2012)
 A. Cortijo. "Linear magnetochiral effect in Weyl semimetals". Phys. Rev. B 94, 241105(R) (2016)
 A. Cortijo "Magnetic-field-induced nonlinear optical responses in inversion symmetric Dirac semimetals". Phys. Rev. B 94, 235123 (2016)