The electronic and magnetic properties of (LaCrO3)m/SrCrO3 superlattices are investigated using first principles calculations. We show that the magnetic moments in the two CrO2 layers sandwiching the SrO layer compensate each other for even m but give rise to a finite magnetization for odd m, which is explained by charge ordering with Cr3+ and Cr4+ ions arranged in a checkerboard pattern. The Cr4+ 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.
|Original language||English (US)|
|State||Published - Feb 27 2023|
Bibliographical noteKAUST Repository Item: Exported on 2023-03-02
Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). Funding was also received from the Deutsche Forschungsgemeinscha (project number 107745057, TRR 80). The authors gratefully acknowledge the KAUST supercomputing laboratory for providing computational resources.