Abstract
The electronic and magnetic properties of (LaCrO
)
/SrCrO
superlattices are investigated using first principles calculations. We show that the magnetic moments in the two CrO
layers sandwiching the SrO layer compensate each other for even
but give rise to a finite magnetization for odd
, which is explained by charge ordering with Cr
and Cr
ions arranged in a checkerboard pattern. The Cr
ions induce in-gap hole states at the interface, implying that the transparent superlattices are p-type semiconductors. The availability of transparent p-type semiconductors with finite magnetization enables the fabrication of transparent magnetic diodes and transistors, for example, with a multitude of potential technological applications.