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Liang, L; Yu, Y; Liang, L (reprint author), Fudan Univ, Ctr Adv Microstruct, State Key Lab Surface Phys & Collaborat Innovat, Dept Phys,Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China.
Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations
Source PublicationPHYSICAL REVIEW B
Language英语
AbstractA relativistic spinor with spin 3/2 is historically called a Rarita-Schwinger spinor. The right-and left-handed chiral degrees of freedom for the massless Rarita-Schwinger spinor are independent and are thought of as the left and right Weyl fermions with helicity +/- 3/2. We study three orbital spin-1/2 Weyl semimetals in the strong spin-orbital coupling limit with time reversal symmetry breaking. We find that in this limit the systems can be a J(eff) = 1/2 Weyl semimetal or a J(eff) = 3/2 semimetal, depending on the Fermi level position. The latter near Weyl points includes degrees of freedom of both Rarita-Schwinger-Weyl and Weyl. A nonlocal potential separates the Weyl and Rarita-Schwinger-Weyl degrees of freedom, and a relativistic Rarita-Schwinger-Weyl semimetal emerges. This recipe can be generalized to a mulit-Weyl semimetal and Weyl fermions with pairing interaction to obtain high monopole charges. Similarly, a spatial-inversion-breaking Raita-Schwinger-Weyl semimetal may also emerge.
2016
Volume93Issue:4Pages:45113
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1103/PhysRevB.93.045113
Indexed BySCI
Funding Organization973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; 973 Program of MOST of China [2012CB821402] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061] ; NNSF of China [11174298, 11474061] ; Academy of Finland through its Centres of Excellence Programme [284621] ; Academy of Finland through its Centres of Excellence Programme [284621] ; Academy of Finland through its Centres of Excellence Programme [284621] ; Academy of Finland through its Centres of Excellence Programme [284621]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21805
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLiang, L (reprint author), Fudan Univ, Ctr Adv Microstruct, State Key Lab Surface Phys & Collaborat Innovat, Dept Phys,Ctr Field Theory & Particle Phys, Shanghai 200433, Peoples R China.
Recommended Citation
GB/T 7714
Liang, L,Yu, Y,Liang, L . Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations[J]. PHYSICAL REVIEW B,2016,93(4):45113.
APA Liang, L,Yu, Y,&Liang, L .(2016).Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations.PHYSICAL REVIEW B,93(4),45113.
MLA Liang, L,et al."Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations".PHYSICAL REVIEW B 93.4(2016):45113.
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