Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source

K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, Ritsuko Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, Minoru Nohara, H. Takagi, S. Watanabe, S. Shin

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Time-resolved photoelectron spectroscopy (trPES) can directly detect transient electronic structure, thus bringing out its promising potential to clarify nonequilibrium processes arising in condensed matters. Here we report the result of core-level trPES on 1T-TaS2, realized by developing a high-intensity 60-eV laser obtained by high-order harmonic generation. Ta4f core-level trPES offers the transient amplitude of the charge-density wave (CDW), via the site-selective and real-time observation of Ta electrons. The present result indicates an ultrafast photoinduced melting and recovery of CDW amplitude, followed by a peculiar long-life oscillation (i.e., collective amplitudon excitation) accompanying the transfer of electrons among adjacent Ta atoms. core-level trPES offers a broad range of opportunities for investigating the ultrafast atom-specific electron dynamics in photorelated phenomena of interest.

Original languageEnglish
Article number081104
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume83
Issue number8
DOIs
Publication statusPublished - Feb 23 2011

Fingerprint

Core levels
Photoelectron spectroscopy
Spectroscopy
Charge density waves
Lasers
photoelectron spectroscopy
spectroscopy
lasers
Electrons
Atoms
Harmonic generation
electrons
Electronic structure
Melting
atoms
harmonic generations
Recovery
recovery
melting
electronic structure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source. / Ishizaka, K.; Kiss, T.; Yamamoto, T.; Ishida, Y.; Saitoh, T.; Matsunami, M.; Eguchi, Ritsuko; Ohtsuki, T.; Kosuge, A.; Kanai, T.; Nohara, Minoru; Takagi, H.; Watanabe, S.; Shin, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 83, No. 8, 081104, 23.02.2011.

Research output: Contribution to journalArticle

Ishizaka, K, Kiss, T, Yamamoto, T, Ishida, Y, Saitoh, T, Matsunami, M, Eguchi, R, Ohtsuki, T, Kosuge, A, Kanai, T, Nohara, M, Takagi, H, Watanabe, S & Shin, S 2011, 'Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source', Physical Review B - Condensed Matter and Materials Physics, vol. 83, no. 8, 081104. https://doi.org/10.1103/PhysRevB.83.081104
Ishizaka, K. ; Kiss, T. ; Yamamoto, T. ; Ishida, Y. ; Saitoh, T. ; Matsunami, M. ; Eguchi, Ritsuko ; Ohtsuki, T. ; Kosuge, A. ; Kanai, T. ; Nohara, Minoru ; Takagi, H. ; Watanabe, S. ; Shin, S. / Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source. In: Physical Review B - Condensed Matter and Materials Physics. 2011 ; Vol. 83, No. 8.
@article{9ac3a340f1ce4b048ea7804f072ef4d9,
title = "Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source",
abstract = "Time-resolved photoelectron spectroscopy (trPES) can directly detect transient electronic structure, thus bringing out its promising potential to clarify nonequilibrium processes arising in condensed matters. Here we report the result of core-level trPES on 1T-TaS2, realized by developing a high-intensity 60-eV laser obtained by high-order harmonic generation. Ta4f core-level trPES offers the transient amplitude of the charge-density wave (CDW), via the site-selective and real-time observation of Ta electrons. The present result indicates an ultrafast photoinduced melting and recovery of CDW amplitude, followed by a peculiar long-life oscillation (i.e., collective amplitudon excitation) accompanying the transfer of electrons among adjacent Ta atoms. core-level trPES offers a broad range of opportunities for investigating the ultrafast atom-specific electron dynamics in photorelated phenomena of interest.",
author = "K. Ishizaka and T. Kiss and T. Yamamoto and Y. Ishida and T. Saitoh and M. Matsunami and Ritsuko Eguchi and T. Ohtsuki and A. Kosuge and T. Kanai and Minoru Nohara and H. Takagi and S. Watanabe and S. Shin",
year = "2011",
month = "2",
day = "23",
doi = "10.1103/PhysRevB.83.081104",
language = "English",
volume = "83",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "8",

}

TY - JOUR

T1 - Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source

AU - Ishizaka, K.

AU - Kiss, T.

AU - Yamamoto, T.

AU - Ishida, Y.

AU - Saitoh, T.

AU - Matsunami, M.

AU - Eguchi, Ritsuko

AU - Ohtsuki, T.

AU - Kosuge, A.

AU - Kanai, T.

AU - Nohara, Minoru

AU - Takagi, H.

AU - Watanabe, S.

AU - Shin, S.

PY - 2011/2/23

Y1 - 2011/2/23

N2 - Time-resolved photoelectron spectroscopy (trPES) can directly detect transient electronic structure, thus bringing out its promising potential to clarify nonequilibrium processes arising in condensed matters. Here we report the result of core-level trPES on 1T-TaS2, realized by developing a high-intensity 60-eV laser obtained by high-order harmonic generation. Ta4f core-level trPES offers the transient amplitude of the charge-density wave (CDW), via the site-selective and real-time observation of Ta electrons. The present result indicates an ultrafast photoinduced melting and recovery of CDW amplitude, followed by a peculiar long-life oscillation (i.e., collective amplitudon excitation) accompanying the transfer of electrons among adjacent Ta atoms. core-level trPES offers a broad range of opportunities for investigating the ultrafast atom-specific electron dynamics in photorelated phenomena of interest.

AB - Time-resolved photoelectron spectroscopy (trPES) can directly detect transient electronic structure, thus bringing out its promising potential to clarify nonequilibrium processes arising in condensed matters. Here we report the result of core-level trPES on 1T-TaS2, realized by developing a high-intensity 60-eV laser obtained by high-order harmonic generation. Ta4f core-level trPES offers the transient amplitude of the charge-density wave (CDW), via the site-selective and real-time observation of Ta electrons. The present result indicates an ultrafast photoinduced melting and recovery of CDW amplitude, followed by a peculiar long-life oscillation (i.e., collective amplitudon excitation) accompanying the transfer of electrons among adjacent Ta atoms. core-level trPES offers a broad range of opportunities for investigating the ultrafast atom-specific electron dynamics in photorelated phenomena of interest.

UR - http://www.scopus.com/inward/record.url?scp=79960973509&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960973509&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.83.081104

DO - 10.1103/PhysRevB.83.081104

M3 - Article

AN - SCOPUS:79960973509

VL - 83

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 8

M1 - 081104

ER -