Semimetal with both Rarita-Schwinger-Weyl and Weyl excitations
文献类型：期刊论文
| 作者 | 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.
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| 刊名 | PHYSICAL REVIEW B
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| 出版日期 | 2016 |
| 卷号 | 93期号:4页码:45113 |
| DOI | http://dx.doi.org/10.1103/PhysRevB.93.045113 |
| 英文摘要 | A 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21805]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | 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. |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
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