2018/02/04 by Yoshiki Iwasaki, Takao Morinari · 1 citation
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Coupling (piping) #Dirac (video compression format) #Dirac fermion #Fermion #Hysteresis #Magnetic field #Magnetic moment #Rare-earth and actinide compounds #Topological Materials and Phenomena #cond-mat.str-el
paper · pdf · doi:10.7566/jpsj.87.033706
published as J. Phys. Soc. Jpn. 87, 033706 (2018) · 5 pages, 4 figures
arxiv created 2018/02/04 · openalex publication_date 2018/02/20 · arxiv updated 2018/02/21 · openalex created_date 2018/02/23 · openalex updated_date 2026/08/05
We theoretically investigate the magnetotransport of Dirac fermions coupled with localized moments to understand the physical properties of the Dirac material EuMnBi2. Using an interlayer hopping form, which simplifies the complicated interaction between the layers of Dirac fermions and the layers of magnetic moments in EuMnBi2, the theory reproduces most of the features observed in this system. The hysteresis observed in EuMnBi2 can be caused by the valley splitting that is induced by the spin-orbit coupling and the external magnetic field with the molecular field created by localized moments. Our theory suggests that the magnetotransport in EuMnBi2 is due to the interplay among Dirac fermions, localized moments, and spin-orbit coupling.