Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System

Electron-phonon-driven charge-density waves can in some circumstances allow electronic correlations to become predominant, driving a system into a Mott insulating state. New insight into both the Mott state and preceding charge-density wave may result from observations of the coupled dynamics of the...

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Autores principales:	C. J. Butler, M. Yoshida, T. Hanaguri, Y. Iwasa
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/e3ebd9e40dc9480cb030e6ff03f5afce
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spelling	oai:doaj.org-article:e3ebd9e40dc9480cb030e6ff03f5afce2021-12-02T13:13:48ZDoublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System10.1103/PhysRevX.11.0110592160-3308https://doaj.org/article/e3ebd9e40dc9480cb030e6ff03f5afce2021-03-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.011059http://doi.org/10.1103/PhysRevX.11.011059https://doaj.org/toc/2160-3308Electron-phonon-driven charge-density waves can in some circumstances allow electronic correlations to become predominant, driving a system into a Mott insulating state. New insight into both the Mott state and preceding charge-density wave may result from observations of the coupled dynamics of their underlying degrees of freedom. Here, tunneling injection of single electrons into the upper Hubbard band of the Mott charge-density-wave material 1T-TaS_{2} reveals extraordinarily narrow electronic excitations which couple to amplitude mode phonons associated with the charge-density wave’s periodic lattice distortion. This gives a vivid microscopic view of the interplay between excitations of the Mott state and the lattice dynamics of its charge-density wave precursor.C. J. ButlerM. YoshidaT. HanaguriY. IwasaAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 1, p 011059 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 C. J. Butler M. Yoshida T. Hanaguri Y. Iwasa Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
description	Electron-phonon-driven charge-density waves can in some circumstances allow electronic correlations to become predominant, driving a system into a Mott insulating state. New insight into both the Mott state and preceding charge-density wave may result from observations of the coupled dynamics of their underlying degrees of freedom. Here, tunneling injection of single electrons into the upper Hubbard band of the Mott charge-density-wave material 1T-TaS_{2} reveals extraordinarily narrow electronic excitations which couple to amplitude mode phonons associated with the charge-density wave’s periodic lattice distortion. This gives a vivid microscopic view of the interplay between excitations of the Mott state and the lattice dynamics of its charge-density wave precursor.
format	article
author	C. J. Butler M. Yoshida T. Hanaguri Y. Iwasa
author_facet	C. J. Butler M. Yoshida T. Hanaguri Y. Iwasa
author_sort	C. J. Butler
title	Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
title_short	Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
title_full	Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
title_fullStr	Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
title_full_unstemmed	Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System
title_sort	doublonlike excitations and their phononic coupling in a mott charge-density-wave system
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/e3ebd9e40dc9480cb030e6ff03f5afce
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Doublonlike Excitations and Their Phononic Coupling in a Mott Charge-Density-Wave System

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