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

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

doi:10.1039/d2na00656a

(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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Abstract

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)
Journal	Nanoscale Advances
DOIs	https://doi.org/10.1039/d2na00656a
State	Published - 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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10.1039/d2na00656a

https://repository.kaust.edu.sa/bitstream/10754/689835/1/d2na00656a.pdf

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

abstract = "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.",

author = "Shubham Tyagi and Rout, {Paresh Chandra} and Ulrike L{\"u}ders and Ulrich Eckern and Udo Schwingenschl{\"o}gl",

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.",

year = "2023",

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day = "27",

doi = "10.1039/d2na00656a",

language = "English (US)",

journal = "Nanoscale Advances",

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T1 - (LaCrO3)m/SrCrO3 superlattices as transparent p-type semiconductors with finite magnetization

AU - Tyagi, Shubham

AU - Rout, Paresh Chandra

AU - Lüders, Ulrike

AU - Eckern, Ulrich

AU - Schwingenschlögl, Udo

N1 - 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.

PY - 2023/2/27

Y1 - 2023/2/27

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/689835

UR - http://xlink.rsc.org/?DOI=D2NA00656A

U2 - 10.1039/d2na00656a

DO - 10.1039/d2na00656a

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C2 - 36926555

SN - 2516-0230

JO - Nanoscale Advances

JF - Nanoscale Advances

ER -

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

Abstract

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