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Article: Chiral Majorana hinge modes in superconducting Dirac materials
Title | Chiral Majorana hinge modes in superconducting Dirac materials |
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Authors | |
Issue Date | 2021 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ |
Citation | Physical Review B: covering condensed matter and materials physics, 2021, v. 103 n. 18, p. article no. L180504 How to Cite? |
Abstract | Chiral Majorana hinge modes are characteristic of a second-order topological superconductor in three dimensions. Here we systematically study pairing symmetry and the leading pairing channels in Dirac materials with the point group D2h, and find that the s+id-wave pairing superconductivity may exist as a consequence of competition between s- and d-wave pairing. The superconducting state is topologically nontrivial and possesses Majorana hinge and surface modes. The chiral Majorana hinge modes can be characterized by a winding number of the quadrupole moment or quantized quadruple moment at the symmetrically invariant point. Possible relevance to superconductivity in ZrTe5 is discussed. Our findings suggest the strong spin-orbital coupling, crystalline symmetries, and electron-electron interaction in the Dirac materials may provide a platform to realize chiral Majorana hinge modes with no proximity effect or external fields. © 2021 American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/300953 |
ISSN | 2021 Impact Factor: 3.908 2020 SCImago Journal Rankings: 1.780 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Fu, B | - |
dc.contributor.author | HU, ZA | - |
dc.contributor.author | Li, CA | - |
dc.contributor.author | Li, J | - |
dc.contributor.author | Shen, SQ | - |
dc.date.accessioned | 2021-07-06T03:12:32Z | - |
dc.date.available | 2021-07-06T03:12:32Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Physical Review B: covering condensed matter and materials physics, 2021, v. 103 n. 18, p. article no. L180504 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://hdl.handle.net/10722/300953 | - |
dc.description.abstract | Chiral Majorana hinge modes are characteristic of a second-order topological superconductor in three dimensions. Here we systematically study pairing symmetry and the leading pairing channels in Dirac materials with the point group D2h, and find that the s+id-wave pairing superconductivity may exist as a consequence of competition between s- and d-wave pairing. The superconducting state is topologically nontrivial and possesses Majorana hinge and surface modes. The chiral Majorana hinge modes can be characterized by a winding number of the quadrupole moment or quantized quadruple moment at the symmetrically invariant point. Possible relevance to superconductivity in ZrTe5 is discussed. Our findings suggest the strong spin-orbital coupling, crystalline symmetries, and electron-electron interaction in the Dirac materials may provide a platform to realize chiral Majorana hinge modes with no proximity effect or external fields. © 2021 American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
dc.relation.ispartof | Physical Review B: covering condensed matter and materials physics | - |
dc.rights | Copyright [2021] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevB.103.L180504]. | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | Chiral Majorana hinge modes in superconducting Dirac materials | - |
dc.type | Article | - |
dc.identifier.email | Fu, B: fubo@hku.hk | - |
dc.identifier.email | Shen, SQ: sshen@hkucc.hku.hk | - |
dc.identifier.authority | Shen, SQ=rp00775 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevB.103.L180504 | - |
dc.identifier.scopus | eid_2-s2.0-85106357032 | - |
dc.identifier.hkuros | 323170 | - |
dc.identifier.volume | 103 | - |
dc.identifier.issue | 18 | - |
dc.identifier.spage | article no. L180504 | - |
dc.identifier.epage | article no. L180504 | - |
dc.identifier.isi | WOS:000655871700006 | - |
dc.publisher.place | United States | - |