Electric-field control of nonlinear THz spintronic emitters.

ABSTRACT: Energy-efficient spintronic technology holds tremendous potential for the design of next-generation processors to operate at terahertz frequencies. Femtosecond photoexcitation of spintronic materials generates sub-picosecond spin currents and emission of terahertz radiation with broad bandwidth. However, terahertz spintronic emitters lack an active material platform for electric-field control. Here, we demonstrate a nonlinear electric-field control of terahertz spin current-based emitters using a single crystal piezoelectric Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ (PMN-PT) that endows artificial magnetoelectric coupling onto a spintronic terahertz emitter and provides 270% modulation of the terahertz field at remnant magnetization. The nonlinear electric-field c

SUBMITTER: Agarwal P 

PROVIDER: S-EPMC9283400 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature