Pump-induced terahertz conductivity response and peculiar bound state in Mn3Si2Te6

Abstract

We report the significant enhancement on ultrafast terahertz optical conductivity and the unexpected formation of a polaronic-like state in semiconductor Mn3Si2Te6 at room temperature. With the absorption of pump photons, the low-frequency terahertz photoconductivity spectrum exhibits a significant rise, quickly forming a broad peak and subsequently shifting to higher energy. The short-lived nature of the broad peak, as well as the distribution of optical constants, strongly points towards a transient polaron mechanism. Our study not only provides profound insights into the remarkable photoelectric response of Mn3Si2Te6 but also highlights its significant potential for future photoelectric applications.

References in corpus (9)

• Trion induced negative photoconductivity in monolayer MoS2
• Ultrafast THz probe of photo-induced polarons in lead-halide perovskites
• Single-particle and collective mode couplings associated with 1- and 2-directional electronic ordering in metallic RTe${}_3$ (R = Ho, Dy, Tb)
• High Intrinsic Mobility and Ultrafast Carrier Dynamics in Multilayer Metal Dichalcogenide MoS2
• Manipulation of Jeff=3/2 states by tuning the tetragonal distortion
• Unconventional charge density wave and photoinduced lattice symmetry change in Kagome Metal CsV${}_3$Sb${}_5$ probed by time-resolved spectroscopy
• Magnetic order and interactions in ferrimagnetic Mn3Si2Te6
• Control of chiral orbital currents in a colossal magnetoresistance material
• Strange electrical transport: Colossal magnetoresistance via avoiding fully polarized magnetization in ferrimagnetic insulator Mn3Si2Te6