Second-order chiral kinetic theory: Chiral magnetic and pseudomagnetic waves

Article

关键词: WEYL FERMION SEMIMETAL;    TOPOLOGICAL DIRAC SEMIMETAL;    NEGATIVE MAGNETORESISTANCE;    PHASE;    DISCOVERY;    CD3AS2;    COLLISIONS;    DYNAMICS;    ARCS;   

DOI  :  10.1103/PhysRevB.95.205141

来源: SCIE

【 摘 要 】

The consistent chiral kinetic theory accurate to the second order in electromagnetic and pseudoelectromagnetic fields is derived for a relativistic matter with two Weyl fermions. By making use of such a framework, the properties of longitudinal collective excitations, which include both chiral magnetic and chiral pseudomagnetic waves, are studied. It is shown that the proper treatment of dynamical electromagnetism transforms these gapless waves into chiral (pseudo) magnetic plasmons, whose Langmuir (plasma) gap receives corrections quadratic in both magnetic and pseudomagnetic fields.

【 授权许可】

Free