Photoinduced spin-order destructions in one-dimensional extended Hubbard model

Abstract

By employing the time-dependent Lanczos method, the nonequilibrium process of the half-filled one-dimensional extended Hubbard model under the irradiation of a transient laser pulse is investigated. We show that in the spin-density-wave (SDW) phase, the antiferromagnetic spin correlations are impaired by the photoinduced charge carriers. Near the phase boundary between the SDW and charge-density-wave (CDW) phases, a local enhancement of charge (spin) order that is absent in the original SDW (CDW) phase can be realized with proper laser frequency and strength. The possibility of restoration of spin orders from the CDW phase by optical means is discussed.

7 pages, 3 figures; complementary to arXiv:1204.1107

References in corpus (4)

• Phase diagram of the one-dimensional half-filled extended Hubbard model
• Non-linear doublon production in a Mott insulator --- Landau-Dykhne method applied to an integrable model
• Enhanced charge order in a photoexcited one-dimensional strongly correlated system
• Relaxation Dynamics of Photocarriers in One-Dimensional Mott Insulators Coupled to Phonons

Cited by in corpus (1)

• Dynamics of screening in photo-doped Mott insulators