Academic Journal
Second Harmonic Generation in the Weyl Semimetal TaAs From a Quantum Kinetic Equation
| العنوان: | Second Harmonic Generation in the Weyl Semimetal TaAs From a Quantum Kinetic Equation |
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| المؤلفون: | Li, Z., Jin, Y.-Q., Tohyama, T., Iitaka, T., Zhang, J.-X., Su, Haibin |
| سنة النشر: | 2018 |
| المجموعة: | The Hong Kong University of Science and Technology: HKUST Institutional Repository |
| الوصف: | We classify the sources of second harmonic generation (SHG) of the Weyl semimetal TaAs by collisionless quantum kinetic equation into three kinds: i.e., injection current from the canonical band dispersion, shift current from a gauge invariant shift vector, and anomalous current from Berry curvature associated with the Fermi surface. Importantly, by using the realistic band model for TaAs, we predict that the SHG in TaAs is predominately contributed by the shift current, while the anomalous current has a minute contribution when the Weyl point is exactly located on the Fermi surface. Moreover, we highlight that the SHG contributed by the anomalous current decays fast with the increasing frequency of incident photons, and could be enhanced by proper electron or hole doping of TaAs. © 2018 American Physical Society. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2469-9950 2469-9969 |
| Relation: | http://repository.ust.hk/ir/Record/1783.1-91253; Physical Review B, v. 97, (8), February 2018, article number 085201; https://doi.org/10.1103/PhysRevB.97.085201; http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2469-9950; 2469-9969&rft.volume=97&rft.issue=(8)&rft.date=2018&rft.spage=&rft.aulast=Li&rft.aufirst=&rft.atitle=Second%20harmonic%20generation%20in%20the%20Weyl%20semimetal%20TaAs%20from%20a%20quantum%20kinetic%20equation&rft.title=Physical%20Review%20B; http://www.scopus.com/record/display.url?eid=2-s2.0-85042177697&origin=inward; http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000424967300004 |
| DOI: | 10.1103/PhysRevB.97.085201 |
| الاتاحة: | http://repository.ust.hk/ir/Record/1783.1-91253 https://doi.org/10.1103/PhysRevB.97.085201 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=2469-9950; 2469-9969&rft.volume=97&rft.issue=(8)&rft.date=2018&rft.spage=&rft.aulast=Li&rft.aufirst=&rft.atitle=Second%20harmonic%20generation%20in%20the%20Weyl%20semimetal%20TaAs%20from%20a%20quantum%20kinetic%20equation&rft.title=Physical%20Review%20B http://www.scopus.com/record/display.url?eid=2-s2.0-85042177697&origin=inward http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000424967300004 |
| رقم الانضمام: | edsbas.CAD07DCA |
| قاعدة البيانات: | BASE |
| تدمد: | 24699950 24699969 |
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| DOI: | 10.1103/PhysRevB.97.085201 |