$Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}$
Código QR

Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}

Topological semimetals have revealed a wide array of novel transport phenomena, including electron hydrodynamics, quantum field theoretic anomalies, and extreme magnetoresistances and mobilities. However, the scattering mechanisms central to the fundamental transport properties remain largely unexpl...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Gavin B. Osterhoudt, Yaxian Wang, Christina A. C. Garcia, Vincent M. Plisson, Johannes Gooth, Claudia Felser, Prineha Narang, Kenneth S. Burch
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/5bfab72a10af457a920de3df72e77b08
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5bfab72a10af457a920de3df72e77b08
record_format	dspace
spelling	oai:doaj.org-article:5bfab72a10af457a920de3df72e77b082021-12-02T14:09:11ZEvidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}10.1103/PhysRevX.11.0110172160-3308https://doaj.org/article/5bfab72a10af457a920de3df72e77b082021-01-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.011017http://doi.org/10.1103/PhysRevX.11.011017https://doaj.org/toc/2160-3308Topological semimetals have revealed a wide array of novel transport phenomena, including electron hydrodynamics, quantum field theoretic anomalies, and extreme magnetoresistances and mobilities. However, the scattering mechanisms central to the fundamental transport properties remain largely unexplored. Here, we reveal signatures of significant phonon-electron scattering in the type-II Weyl semimetal WP_{2} via temperature-dependent Raman spectroscopy. Over a large temperature range, we find that the decay rates of the lowest energy A_{1} modes are dominated by phonon-electron rather than phonon-phonon scattering. In conjunction with first-principles calculations, a combined analysis of the momentum, energy, and symmetry-allowed decay paths indicates this results from finite momentum interband and intraband scattering of the electrons. The excellent agreement with theory further suggests that such results could be true for the acoustic modes. We thus provide evidence for the importance of phonons in the transport properties of topological semimetals and identify specific properties that may contribute to such behavior in other materials.Gavin B. OsterhoudtYaxian WangChristina A. C. GarciaVincent M. PlissonJohannes GoothClaudia FelserPrineha NarangKenneth S. BurchAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 1, p 011017 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Gavin B. Osterhoudt Yaxian Wang Christina A. C. Garcia Vincent M. Plisson Johannes Gooth Claudia Felser Prineha Narang Kenneth S. Burch Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
description	Topological semimetals have revealed a wide array of novel transport phenomena, including electron hydrodynamics, quantum field theoretic anomalies, and extreme magnetoresistances and mobilities. However, the scattering mechanisms central to the fundamental transport properties remain largely unexplored. Here, we reveal signatures of significant phonon-electron scattering in the type-II Weyl semimetal WP_{2} via temperature-dependent Raman spectroscopy. Over a large temperature range, we find that the decay rates of the lowest energy A_{1} modes are dominated by phonon-electron rather than phonon-phonon scattering. In conjunction with first-principles calculations, a combined analysis of the momentum, energy, and symmetry-allowed decay paths indicates this results from finite momentum interband and intraband scattering of the electrons. The excellent agreement with theory further suggests that such results could be true for the acoustic modes. We thus provide evidence for the importance of phonons in the transport properties of topological semimetals and identify specific properties that may contribute to such behavior in other materials.
format	article
author	Gavin B. Osterhoudt Yaxian Wang Christina A. C. Garcia Vincent M. Plisson Johannes Gooth Claudia Felser Prineha Narang Kenneth S. Burch
author_facet	Gavin B. Osterhoudt Yaxian Wang Christina A. C. Garcia Vincent M. Plisson Johannes Gooth Claudia Felser Prineha Narang Kenneth S. Burch
author_sort	Gavin B. Osterhoudt
title	Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
title_short	Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
title_full	Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
title_fullStr	Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
title_full_unstemmed	Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}
title_sort	evidence for dominant phonon-electron scattering in weyl semimetal wp_{2}
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/5bfab72a10af457a920de3df72e77b08
work_keys_str_mv	AT gavinbosterhoudt evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT yaxianwang evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT christinaacgarcia evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT vincentmplisson evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT johannesgooth evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT claudiafelser evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT prinehanarang evidencefordominantphononelectronscatteringinweylsemimetalwp2 AT kennethsburch evidencefordominantphononelectronscatteringinweylsemimetalwp2
_version_	1718391907698081792

Evidence for Dominant Phonon-Electron Scattering in Weyl Semimetal WP_{2}

Ejemplares similares