Ultrafast response of plasma-like reflectivity edge in (TMTTF)2AsF6 driven by 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 ultarfast (20 fs) and large (40%) response of the plasma-like reflectivity edge (0.7 eV) was analyzed by the changes in omega_p=sqrt(ne2/(epsilon_0*epsilon(infty)*m)} (n: number of charges in the 1/4 filled-band, m: mass of charge, epsilon(infty): dielectric constants for high-frequency and vacuum, e: elementary charge). The 3% reduction in omega_p is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of omega_p in the time domain indicates that the plasma-like edge is affected by the charge gap (0.2 eV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.

arXiv commentPhys. Rev. B accepted (26, March, 2016)

References in corpus (9)

• Electrodynamics of Correlated Electron Materials
• Nonequilibrium dynamical mean-field theory and its applications
• The ferroelectric Mott-Hubbard phase of organic (TMTTF)2X conductors
• Coherent destruction of tunneling, dynamic localization and the Landau-Zener formula
• Optical freezing of charge motion in an organic conductor
• Pressure-induced deconfinement of the charge transport in the quasi-one-dimensional Mott insulator (TMTTF)_2AsF_6
• Tuning the magnetic dimensionality by charge ordering in the molecular TMTTF salts
• Theory of the optical conductivity of (TMTSF)${}_2$PF${}_6$ in the mid-infrared range
• Negative-Temperature State Formed and Interactions Inverted by Symmetric Monocycle Optical Pulse Excitation

Cited by in corpus (9)

• High-Harmonic Generation in a Correlated Electron System
• Photoinduced charge-order melting dynamics in a one-dimensional interacting Holstein model
• Strong light-field effects driven by nearly single-cycle 7-fs light field in correlated organic conductors
• Polarization selectivity of charge localization induced by 7-fs nearly single-cycle light-field in an organic metal
• Optical suppression of electron motion in low-dimensional correlated electron system
• Photoinduced Enhancement of Anisotropic Charge Correlations on Triangular Lattices with Trimers
• Photoexcitation of a polarization-inverted domain from the charge-ordered ferroelectric ground state of (TMTTF)${}_2$PF${}_6$
• Photoinduced High-Frequency Charge Oscillations in Dimerized Systems
• The optical conductivity for a spin-Peierls ground state of (TMTTF)${}_2$PF${}_6$ with tetramer formation