(LaCrO3)m/SrCrO3 superlattices as transparent p-type semiconductors with finite magnetization

Shubham Tyagi, Paresh Chandra Rout, Ulrike Lüders, Ulrich Eckern, Udo Schwingenschlögl

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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 languageEnglish (US)
JournalNanoscale Advances
StatePublished - Feb 27 2023

Bibliographical note

KAUST 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.


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