Ultrafast response of plasmalike reflectivity edge in (TMTTF)2As F6 driven by a 7-fs 1.5-cycle strong-light field

Y. Naitoh; Y. Kawakami; T. Ishikawa; Y. Sagae; H. Itoh; K. Yamamoto; T. Sasaki; M. Dressel; S. Ishihara; Y. Tanaka; K. Yonemitsu; S. Iwai

doi:10.1103/PhysRevB.93.165126

Ultrafast response of plasmalike reflectivity edge in (TMTTF)2As F6 driven by a 7-fs 1.5-cycle strong-light field

Y. Naitoh^*, Y. Kawakami, T. Ishikawa, Y. Sagae, H. Itoh, K. Yamamoto, T. Sasaki, M. Dressel, S. Ishihara, Y. Tanaka, K. Yonemitsu, S. Iwai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The strong-light field effect of (TMTTF)2AsF6 was investigated utilizing 1.5-cycle, 7-fs infrared pulses. The ultrafast (∼20fs) and large (∼40%) response of the plasmalike reflectivity edge (∼0.7eV) was analyzed by the changes in ωp=ne2/(∞0m) (n: number of charges in the frac14-filled band; m: mass of charge; ∞,0: dielectric constants for high frequency and vacuum; e: elementary charge). The 3% reduction in ωp is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of ωp in the time domain indicates that the plasmalike edge is affected by the charge gap (∼0.2eV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.

Original language	English
Article number	165126
Journal	Physical Review B
Volume	93
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.93.165126
Publication status	Published - 2016 Apr 19
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.93.165126

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title = "Ultrafast response of plasmalike reflectivity edge in (TMTTF)2As F6 driven by a 7-fs 1.5-cycle strong-light field",

abstract = "The strong-light field effect of (TMTTF)2AsF6 was investigated utilizing 1.5-cycle, 7-fs infrared pulses. The ultrafast (∼20fs) and large (∼40%) response of the plasmalike reflectivity edge (∼0.7eV) was analyzed by the changes in ωp=ne2/(∞0m) (n: number of charges in the frac14-filled band; m: mass of charge; ∞,0: dielectric constants for high frequency and vacuum; e: elementary charge). The 3% reduction in ωp is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of ωp in the time domain indicates that the plasmalike edge is affected by the charge gap (∼0.2eV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.",

author = "Y. Naitoh and Y. Kawakami and T. Ishikawa and Y. Sagae and H. Itoh and K. Yamamoto and T. Sasaki and M. Dressel and S. Ishihara and Y. Tanaka and K. Yonemitsu and S. Iwai",

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doi = "10.1103/PhysRevB.93.165126",

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AU - Naitoh, Y.

AU - Kawakami, Y.

AU - Ishikawa, T.

AU - Sagae, Y.

AU - Itoh, H.

AU - Yamamoto, K.

AU - Sasaki, T.

AU - Dressel, M.

AU - Ishihara, S.

AU - Tanaka, Y.

AU - Yonemitsu, K.

AU - Iwai, S.

PY - 2016/4/19

Y1 - 2016/4/19

N2 - The strong-light field effect of (TMTTF)2AsF6 was investigated utilizing 1.5-cycle, 7-fs infrared pulses. The ultrafast (∼20fs) and large (∼40%) response of the plasmalike reflectivity edge (∼0.7eV) was analyzed by the changes in ωp=ne2/(∞0m) (n: number of charges in the frac14-filled band; m: mass of charge; ∞,0: dielectric constants for high frequency and vacuum; e: elementary charge). The 3% reduction in ωp is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of ωp in the time domain indicates that the plasmalike edge is affected by the charge gap (∼0.2eV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.

AB - The strong-light field effect of (TMTTF)2AsF6 was investigated utilizing 1.5-cycle, 7-fs infrared pulses. The ultrafast (∼20fs) and large (∼40%) response of the plasmalike reflectivity edge (∼0.7eV) was analyzed by the changes in ωp=ne2/(∞0m) (n: number of charges in the frac14-filled band; m: mass of charge; ∞,0: dielectric constants for high frequency and vacuum; e: elementary charge). The 3% reduction in ωp is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of ωp in the time domain indicates that the plasmalike edge is affected by the charge gap (∼0.2eV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.

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Ultrafast response of plasmalike reflectivity edge in (TMTTF)2As F6 driven by a 7-fs 1.5-cycle strong-light field

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