Optical conversion of pure spin currents in hybrid molecular devices.

ABSTRACT: Carbon-based molecules offer unparalleled potential for THz and optical devices controlled by pure spin currents: a low-dissipation flow of electronic spins with no net charge displacement. However, the research so far has been focused on the electrical conversion of the spin imbalance, where molecular materials are used to mimic their crystalline counterparts. Here, we use spin currents to access the molecular dynamics and optical properties of a fullerene layer. The spin mixing conductance across Py/C₆₀ interfaces is increased by 10% (5 × 10¹⁸ m^-2) under optical irradiation. Measurements show up to a 30% higher light absorbance and a factor of 2 larger photoemission during spin pumping. We also observe a 0.15 THz slowdown and a narrowing of the vibrationa

SUBMITTER: Wheeler MC 

PROVIDER: S-EPMC5640639 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature