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Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling
Mechanisms of the recently demonstrated ex-situ thermal control of the indirect exchange coupling in magnetic multilayer are discussed for different designs of the spacer layer. Temperature-induced changes in the hysteresis of magnetization are shown to be associated with different types of competin...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6104462/ https://www.ncbi.nlm.nih.gov/pubmed/30136038 http://dx.doi.org/10.1186/s11671-018-2669-0 |
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author | Polishchuk, Dmytro Tykhonenko-Polishchuk, Yuliya Borynskyi, Vladyslav Kravets, Anatolii Tovstolytkin, Alexandr Korenivski, Vladislav |
author_facet | Polishchuk, Dmytro Tykhonenko-Polishchuk, Yuliya Borynskyi, Vladyslav Kravets, Anatolii Tovstolytkin, Alexandr Korenivski, Vladislav |
author_sort | Polishchuk, Dmytro |
collection | PubMed |
description | Mechanisms of the recently demonstrated ex-situ thermal control of the indirect exchange coupling in magnetic multilayer are discussed for different designs of the spacer layer. Temperature-induced changes in the hysteresis of magnetization are shown to be associated with different types of competing interlayer exchange interactions. Theoretical analysis indicates that the measured step-like shape and hysteresis of the magnetization loops is due to local in-plane magnetic anisotropy of nano-crystallites within the strongly ferromagnetic films. Comparison of the experiment and theory is used to contrast the mechanisms of the magnetization switching based on the competition of (i) indirect (RKKY) and direct (non-RKKY) interlayer exchange interactions as well as (ii) indirect ferromagnetic and indirect antiferromagnetic (both of RKKY type) interlayer exchange. These results, detailing the rich magnetic phase space of the system, should help enable the practical use of RKKY for thermally switching the magnetization in magnetic multilayers. |
format | Online Article Text |
id | pubmed-6104462 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-61044622018-09-11 Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling Polishchuk, Dmytro Tykhonenko-Polishchuk, Yuliya Borynskyi, Vladyslav Kravets, Anatolii Tovstolytkin, Alexandr Korenivski, Vladislav Nanoscale Res Lett Nano Express Mechanisms of the recently demonstrated ex-situ thermal control of the indirect exchange coupling in magnetic multilayer are discussed for different designs of the spacer layer. Temperature-induced changes in the hysteresis of magnetization are shown to be associated with different types of competing interlayer exchange interactions. Theoretical analysis indicates that the measured step-like shape and hysteresis of the magnetization loops is due to local in-plane magnetic anisotropy of nano-crystallites within the strongly ferromagnetic films. Comparison of the experiment and theory is used to contrast the mechanisms of the magnetization switching based on the competition of (i) indirect (RKKY) and direct (non-RKKY) interlayer exchange interactions as well as (ii) indirect ferromagnetic and indirect antiferromagnetic (both of RKKY type) interlayer exchange. These results, detailing the rich magnetic phase space of the system, should help enable the practical use of RKKY for thermally switching the magnetization in magnetic multilayers. Springer US 2018-08-22 /pmc/articles/PMC6104462/ /pubmed/30136038 http://dx.doi.org/10.1186/s11671-018-2669-0 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Polishchuk, Dmytro Tykhonenko-Polishchuk, Yuliya Borynskyi, Vladyslav Kravets, Anatolii Tovstolytkin, Alexandr Korenivski, Vladislav Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title | Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title_full | Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title_fullStr | Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title_full_unstemmed | Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title_short | Magnetic Hysteresis in Nanostructures with Thermally Controlled RKKY Coupling |
title_sort | magnetic hysteresis in nanostructures with thermally controlled rkky coupling |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6104462/ https://www.ncbi.nlm.nih.gov/pubmed/30136038 http://dx.doi.org/10.1186/s11671-018-2669-0 |
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