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- W2892433007 abstract "A Drude-Sommerfeld topological model (DSTM) is proposed to describe Weyl fermions under residual collisions. They are nearly free and dressed by their own weak magnetic field that breaks the reflection and time symmetries around a layer. This weak magnetic field brings topological stability to the states through a non-trivial Chern-Simons number which is here calculated in the limit of a Dirac linear spectrum. The Weyl fermions display an energy gap and much above this gap the spectrum becomes Dirac linear. They are obtained from a Schroedinger like hamiltonian for particles with spin and magnetic energy which are momentum confined to a layer. The electrical and the thermal conductivities of the Weyl fermions as well as the corresponding Wiedemman-Franz law are derived in the framework of a constant relaxation time. The Lorenz number coefficient acquires asymptotic value $6.5552$ times the bulk value of $pi^2/3$. The relaxation time is shown to be renormalized by the inverse of the square of the gap, and so, leads to a ballistic regime in the linear Dirac spectrum limit." @default.
- W2892433007 created "2018-10-05" @default.
- W2892433007 creator A5011321478 @default.
- W2892433007 date "2019-03-01" @default.
- W2892433007 modified "2023-09-30" @default.
- W2892433007 title "The linear Dirac spectrum and the Weyl states in the Drude-Sommerfeld topological model" @default.
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- W2892433007 doi "https://doi.org/10.1140/epjb/e2019-90591-2" @default.
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