Light effect on the interface resistance of Ba${}_{0.8}$Sr${}_{0.2}$TiO${}_3$/LaMnO${}_3$ heterosctructure

Abstract

The effect of green and ultraviolet laser light on Ba${}_{0.8}$Sr${}_{0.2}$TiO${}_3$/LaMnO${}_3$ heterostructure electrical resistance was studied. In 80-200 K range illumination induces transient resistance component at ~15% of the steady-state value, the time constant associated with the transient component is ~12 s. The negative photoresistance effect is found under green, infrared and ultraviolet illumination.

14 pages, 3 figures

References in corpus (2)

• Magnetic effects at the interface between nonmagnetic oxides
• Appearance and disappearance of ferromagnetism in ultra-thin LaMnO${}_3$ on SrTiO${}_3$ substrate: a viewpoint from first-principles