2016/03/31 by Y. Naitoh, Y. Kawakami, Takahiro Ishikawa +16 · 14 citations
Chemistry · Materials Science · Physics and Astronomy · #Atomic physics #Charge (physics) #Condensed matter physics #Coulomb #Electron #Inorganic Fluorides and Related Compounds #Magnetism in coordination complexes #Omega #Organic and Molecular Conductors Research #Particle physics #Physics #Quantum mechanics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.93.165126
published in Physical review. B./Physical review. B 93(16) (American Physical Society) · Phys. Rev. B accepted (26, March, 2016)
arxiv created 2016/03/31 · openalex publication_date 2016/04/19 · arxiv updated 2016/04/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The strong-light field effect of (TMTTF)2AsF6 was investigated utilizing 1.5-cycle, 7-fs infrared pulses. The ultrafast (\ensuremath∼20\phantom\rule0.16em0exfs) and large (\ensuremath∼40%) response of the plasmalike reflectivity edge (\ensuremath∼0.7\phantom\rule0.16em0exeV) was analyzed by the changes in \ensuremathωp=√ne2/(\ensuremathε_\ensuremath∞\ensuremathε0m) (n: number of charges in the frac14\text\ensuremath-filled band; m: mass of charge; \ensuremathε_\ensuremath∞,\ensuremathε0: dielectric constants for high frequency and vacuum; e: elementary charge). The 3% reduction in \ensuremathωp is attributed to the 6% increase in m. Furthermore, 20 fs oscillation of \ensuremathωp in the time domain indicates that the plasmalike edge is affected by the charge gap (\ensuremath∼0.2\phantom\rule0.16em0exeV) nature. Theoretical calculations suggest that the Coulomb repulsion plays an important role in the increase in m.