Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics

Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics

We investigate the driving mechanism leading to charge-density-wave transition in 1T-TiSe2 single crystals. Our results show that both exciton instability and phonons cooperate to develop the charge ordered phase below 202 K.

Bibliographic Details
Main Authors: Hedayat H., Bugini D., Karbassi S., Friedmann S., van Wezel J., Clark S. R., Sayers C., Da Como E., Cerullo G., Dallera C., Carpene E.
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_04008.pdf
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spelling doaj-ef1c9a67a0884b14a74be232a2dcf8152021-08-02T04:01:03ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012050400810.1051/epjconf/201920504008epjconf_up2019_04008Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamicsHedayat H.0Bugini D.1Karbassi S.2Friedmann S.3van Wezel J.4Clark S. R.5Sayers C.6Da Como E.7Cerullo G.Dallera C.8Carpene E.9Dipartimento di Fisica, Politecnico di MilanoDipartimento di Fisica, Politecnico di MilanoHH Wills Physics Laboratory, University of BristolHH Wills Physics Laboratory, University of BristolInstitute for Theoretical Physics, Institute of Physics, University of AmsterdamDepartment of Physics and Centre for Photonics and Photonic Materials, University of BathDepartment of Physics and Centre for Photonics and Photonic Materials, University of BathDepartment of Physics and Centre for Photonics and Photonic Materials, University of BathDipartimento di Fisica, Politecnico di MilanoIFN-CNR, Dipartimento di Fisica, Politecnico di MilanoWe investigate the driving mechanism leading to charge-density-wave transition in 1T-TiSe2 single crystals. Our results show that both exciton instability and phonons cooperate to develop the charge ordered phase below 202 K.https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_04008.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Hedayat H.
Bugini D.
Karbassi S.
Friedmann S.
van Wezel J.
Clark S. R.
Sayers C.
Da Como E.
Cerullo G.
Dallera C.
Carpene E.
spellingShingle Hedayat H.
Bugini D.
Karbassi S.
Friedmann S.
van Wezel J.
Clark S. R.
Sayers C.
Da Como E.
Cerullo G.
Dallera C.
Carpene E.
Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
EPJ Web of Conferences
author_facet Hedayat H.
Bugini D.
Karbassi S.
Friedmann S.
van Wezel J.
Clark S. R.
Sayers C.
Da Como E.
Cerullo G.
Dallera C.
Carpene E.
author_sort Hedayat H.
title Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
title_short Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
title_full Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
title_fullStr Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
title_full_unstemmed Charge-density-wave in 1T-TiSe2: exciton-phonon separation by femtosecond valence band dynamics
title_sort charge-density-wave in 1t-tise2: exciton-phonon separation by femtosecond valence band dynamics
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2019-01-01
description We investigate the driving mechanism leading to charge-density-wave transition in 1T-TiSe2 single crystals. Our results show that both exciton instability and phonons cooperate to develop the charge ordered phase below 202 K.
url https://www.epj-conferences.org/articles/epjconf/pdf/2019/10/epjconf_up2019_04008.pdf
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AT buginid chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT karbassis chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT friedmanns chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT vanwezelj chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT clarksr chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
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AT dacomoe chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT cerullog chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT dallerac chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
AT carpenee chargedensitywavein1ttise2excitonphononseparationbyfemtosecondvalencebanddynamics
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