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- Publisher Website: 10.1103/PhysRevLett.125.256601
- Scopus: eid_2-s2.0-85098176060
- PMID: 33416380
- WOS: WOS:000599093500012
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Article: Dirac Polarons and Resistivity Anomaly in ZrTe5 and HfTe5
Title | Dirac Polarons and Resistivity Anomaly in ZrTe5 and HfTe5 |
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Authors | |
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. 125 n. 25, p. article no. 256601 How to Cite? |
Abstract | Resistivity anomaly, a sharp peak of resistivity at finite temperatures, in the transition-metal pentatellurides ZrTe5 and HfTe5 was observed four decades ago, and more exotic and anomalous behaviors of electric and thermoelectric transport were revealed in recent years. Here, we present a theory of Dirac polarons, composed by massive Dirac electrons and holes in an encircling cloud of lattice displacements or phonons at finite temperatures. The chemical potential of Dirac polarons sweeps the band gap of the topological band structure by increasing the temperature, leading to the resistivity anomaly. Formation of a nearly neutral state of Dirac polarons accounts for the anomalous behaviors of the electric and thermoelectric resistivity around the peak of resistivity. |
Persistent Identifier | http://hdl.handle.net/10722/295485 |
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 | Fu, B | - |
dc.contributor.author | Wang, HW | - |
dc.contributor.author | Shen, SQ | - |
dc.date.accessioned | 2021-01-25T11:15:34Z | - |
dc.date.available | 2021-01-25T11:15:34Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Physical Review Letters, 2020, v. 125 n. 25, p. article no. 256601 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/10722/295485 | - |
dc.description.abstract | Resistivity anomaly, a sharp peak of resistivity at finite temperatures, in the transition-metal pentatellurides ZrTe5 and HfTe5 was observed four decades ago, and more exotic and anomalous behaviors of electric and thermoelectric transport were revealed in recent years. Here, we present a theory of Dirac polarons, composed by massive Dirac electrons and holes in an encircling cloud of lattice displacements or phonons at finite temperatures. The chemical potential of Dirac polarons sweeps the band gap of the topological band structure by increasing the temperature, leading to the resistivity anomaly. Formation of a nearly neutral state of Dirac polarons accounts for the anomalous behaviors of the electric and thermoelectric resistivity around the peak of resistivity. | - |
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 | Copyright [2020] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevLett.125.256601]. | - |
dc.title | Dirac Polarons and Resistivity Anomaly in ZrTe5 and HfTe5 | - |
dc.type | Article | - |
dc.identifier.email | Fu, B: fubo@hku.hk | - |
dc.identifier.email | Wang, HW: phwhw@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.125.256601 | - |
dc.identifier.pmid | 33416380 | - |
dc.identifier.scopus | eid_2-s2.0-85098176060 | - |
dc.identifier.hkuros | 321004 | - |
dc.identifier.volume | 125 | - |
dc.identifier.issue | 25 | - |
dc.identifier.spage | article no. 256601 | - |
dc.identifier.epage | article no. 256601 | - |
dc.identifier.isi | WOS:000599093500012 | - |
dc.publisher.place | United States | - |