Journal
PHYSICAL REVIEW B
Volume 87, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.245104
Keywords
-
Funding
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2011-0010186, 2010-0005669, 2012-013838, 2011-0030147, 2012-029709, R32-2008-000-10180-0]
- National Research Foundation of Korea [R32-2012-000-10180-0, 2010-0005669, 2011-0030146, 2013M2B2A9A03051257, 2011-0010186, 2013R1A1A2006416] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Low-energy electronic structures in AMnBi(2) (A=alkaline earths) are investigated using a first-principles calculation and a tight binding method. An anisotropic Dirac dispersion is induced by the checkerboard arrangement of A atoms above and below the Bi square net in AMnBi(2 center dot) SrMnBi2 and CaMnBi2 have a different kind of Dirac dispersion due to the different stacking of nearby A layers, where each Sr (Ca) of one side appears at the coincident (staggered) xy position of the same element at the other side. Using the tight binding analysis, we reveal the chirality of the anisotropic Dirac electrons as well as the sizable spin-orbit coupling effect in the Bi square net. We suggest that the Bi square net provides a platform for the interplay between anisotropic Dirac electrons and the neighboring environment such as magnetism and structural changes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available