Atomic-Scale Modulation of Synthetic Magnetic Order in Oxide Superlattices
Abstract
Abstract Atomic‐scale precision control of magnetic interactions facilitates a synthetic spin order useful for spintronics, including advanced memory and quantum logic devices. Conventional modulation of synthetic spin order has been limited to metallic heterostructures that exploit Ruderman–Kittel–Kasuya–Yosida interaction through a nonmagnetic metallic spacer; however, they face issues arising from Joule heating and/or electric breakdown. The practical realization and observation of a synthetic spin order across a nonmagnetic insulating spacer will lead to the development of spin‐related devices with a completely different concept. Herein, the atomic‐scale modulation of the synthetic spiral spin order in oxide superlattices composed of ferromagnetic metal and nonmagnetic insulator layers is reported. The atomically controlled superlattice exhibits an oscillatory magnetic behavior, representing the existence of a spiral spin structure. Depth‐sensitive polarized neutron reflectometry evidences modulated spiral spin structures as a function of the nonmagnetic insulator layer thickness. Atomic‐scale customization of the spin state can move the field one step further to actual spintronic applications.
- Authors:
-
[1];
[3];
[1]
- Sungkyunkwan University, Suwon (Korea, Republic of)
- Pusan National University, Busan (Korea, Republic of)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1907222
- Alternate Identifier(s):
- OSTI ID: 1995880
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Small Methods
- Additional Journal Information:
- Journal Volume: 0; Journal Issue: 0; Journal ID: ISSN 2366-9608
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; atomic-scale modulation; synthetic magnetic order; tunable magnetic noncollinearity; magnetic oxide superlattices; polarized neutron reflectometry
Citation Formats
Jeong, Seung Gyo, Song, Sehwan, Park, Sungkyun, Lauter, Valeria, and Choi, Woo Seok. Atomic-Scale Modulation of Synthetic Magnetic Order in Oxide Superlattices. United States: N. p., 2022.
Web. doi:10.1002/smtd.202201386.
Jeong, Seung Gyo, Song, Sehwan, Park, Sungkyun, Lauter, Valeria, & Choi, Woo Seok. Atomic-Scale Modulation of Synthetic Magnetic Order in Oxide Superlattices. United States. https://doi.org/10.1002/smtd.202201386
Jeong, Seung Gyo, Song, Sehwan, Park, Sungkyun, Lauter, Valeria, and Choi, Woo Seok. Fri .
"Atomic-Scale Modulation of Synthetic Magnetic Order in Oxide Superlattices". United States. https://doi.org/10.1002/smtd.202201386. https://www.osti.gov/servlets/purl/1907222.
@article{osti_1907222,
title = {Atomic-Scale Modulation of Synthetic Magnetic Order in Oxide Superlattices},
author = {Jeong, Seung Gyo and Song, Sehwan and Park, Sungkyun and Lauter, Valeria and Choi, Woo Seok},
abstractNote = {Abstract Atomic‐scale precision control of magnetic interactions facilitates a synthetic spin order useful for spintronics, including advanced memory and quantum logic devices. Conventional modulation of synthetic spin order has been limited to metallic heterostructures that exploit Ruderman–Kittel–Kasuya–Yosida interaction through a nonmagnetic metallic spacer; however, they face issues arising from Joule heating and/or electric breakdown. The practical realization and observation of a synthetic spin order across a nonmagnetic insulating spacer will lead to the development of spin‐related devices with a completely different concept. Herein, the atomic‐scale modulation of the synthetic spiral spin order in oxide superlattices composed of ferromagnetic metal and nonmagnetic insulator layers is reported. The atomically controlled superlattice exhibits an oscillatory magnetic behavior, representing the existence of a spiral spin structure. Depth‐sensitive polarized neutron reflectometry evidences modulated spiral spin structures as a function of the nonmagnetic insulator layer thickness. Atomic‐scale customization of the spin state can move the field one step further to actual spintronic applications.},
doi = {10.1002/smtd.202201386},
journal = {Small Methods},
number = 0,
volume = 0,
place = {United States},
year = {Fri Dec 23 00:00:00 EST 2022},
month = {Fri Dec 23 00:00:00 EST 2022}
}
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