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- Publisher Website: 10.1103/PhysRevLett.124.206603
- Scopus: eid_2-s2.0-85085841574
- PMID: 32501096
- WOS: WOS:000535205600008
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Article: Anomalous Temperature Dependence of Quantum Correction to the Conductivity of Magnetic Topological Insulators
Title | Anomalous Temperature Dependence of Quantum Correction to the Conductivity of Magnetic Topological Insulators |
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Authors | |
Keywords | Electrical conductivity Magnetotransport Topological materials |
Issue Date | 2020 |
Publisher | American Physical Society. The Journal's web site is located at https://journals.aps.org/prl/ |
Citation | Physical Review Letters, 2020, v. 124, p. article no. 206603 How to Cite? |
Abstract | Quantum transport in magnetic topological insulators reveals a strong interplay between magnetism and topology of electronic band structures. A recent experiment on magnetically doped topological insulator Bi 2 Se 3 thin films showed the anomalous temperature dependence of the magnetoconductivity while their field dependence presents a clear signature of weak antilocalization [Tkac et al., Phys. Rev. Lett. 123, 036406 (2019)]. Here, we demonstrate that the tiny mass of the surface electrons induced by the bulk magnetization leads to a temperature-dependent correction to the π Berry phase and generates a decoherence mechanism to the phase coherence length of the surface electrons. As a consequence, the quantum correction to conductivity can exhibit nonmonotonic behavior by decreasing the temperature. This effect is attributed to the close relation of the Berry phase and quantum interference of the topological surface electrons in quantum topological materials. |
Persistent Identifier | http://hdl.handle.net/10722/282951 |
ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | WANG, HW | - |
dc.contributor.author | Fu, B | - |
dc.contributor.author | Shen, SQ | - |
dc.date.accessioned | 2020-06-05T06:23:26Z | - |
dc.date.available | 2020-06-05T06:23:26Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Physical Review Letters, 2020, v. 124, p. article no. 206603 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/282951 | - |
dc.description.abstract | Quantum transport in magnetic topological insulators reveals a strong interplay between magnetism and topology of electronic band structures. A recent experiment on magnetically doped topological insulator Bi 2 Se 3 thin films showed the anomalous temperature dependence of the magnetoconductivity while their field dependence presents a clear signature of weak antilocalization [Tkac et al., Phys. Rev. Lett. 123, 036406 (2019)]. Here, we demonstrate that the tiny mass of the surface electrons induced by the bulk magnetization leads to a temperature-dependent correction to the π Berry phase and generates a decoherence mechanism to the phase coherence length of the surface electrons. As a consequence, the quantum correction to conductivity can exhibit nonmonotonic behavior by decreasing the temperature. This effect is attributed to the close relation of the Berry phase and quantum interference of the topological surface electrons in quantum topological materials. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at https://journals.aps.org/prl/ | - |
dc.relation.ispartof | Physical Review Letters | - |
dc.rights | Physical Review Letters. Copyright © American Physical Society. | - |
dc.rights | Copyright [2020] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevLett.124.206603]. | - |
dc.subject | Electrical conductivity | - |
dc.subject | Magnetotransport | - |
dc.subject | Topological materials | - |
dc.title | Anomalous Temperature Dependence of Quantum Correction to the Conductivity of Magnetic Topological Insulators | - |
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/PhysRevLett.124.206603 | - |
dc.identifier.pmid | 32501096 | - |
dc.identifier.scopus | eid_2-s2.0-85085841574 | - |
dc.identifier.hkuros | 310247 | - |
dc.identifier.volume | 124 | - |
dc.identifier.spage | article no. 206603 | - |
dc.identifier.epage | article no. 206603 | - |
dc.identifier.isi | WOS:000535205600008 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0031-9007 | - |