Exotic Magnetic Anisotropy Near Digitized Dimensional Mott Boundary

The magnetic anisotropy of low-dimensional Mott systems exhibits unexpected magnetotransport behavior useful for spin-based quantum electronics. Yet, the anisotropy of natural materials is inherently determined by the crystal structure, highly limiting its engineering. The magnetic anisotropy modula...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2023-10, Vol.19 (41), p.e2303176-e2303176
Main Authors: Jeong, Seung Gyo, Kim, Jihyun, Min, Taewon, Song, Sehwan, Oh, Jin Young, Noh, Woo-Suk, Park, Sungkyun, Park, Tuson, Ok, Jong Mok, Lee, Jaekwang, Choi, Woo Seok
Format: Article
Language:English
Subjects:
Coupling
Crystal structure
Digitization
Electron spin
Interlayers
Magnetic anisotropy
Monolayers
Nanotechnology
Quantum electronics
Spintronics
Superlattices
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Summary:The magnetic anisotropy of low-dimensional Mott systems exhibits unexpected magnetotransport behavior useful for spin-based quantum electronics. Yet, the anisotropy of natural materials is inherently determined by the crystal structure, highly limiting its engineering. The magnetic anisotropy modulation near a digitized dimensional Mott boundary in artificial superlattices composed of a correlated magnetic monolayer SrRuO and nonmagnetic SrTiO , is demonstrated. The magnetic anisotropy is initially engineered by modulating the interlayer coupling strength between the magnetic monolayers. Interestingly, when the interlayer coupling strength is maximized, a nearly degenerate state is realized, in which the anisotropic magnetotransport is strongly influenced by both the thermal and magnetic energy scales. The results offer a new digitized control for magnetic anisotropy in low-dimensional Mott systems, inspiring promising integration of Mottronics and spintronics.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202303176