Título:
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Low-voltage magnetoelectric coupling in Fe0.5Rh0.5/0.68PbMg1/3Nb2/3O3-0.32PbTiO3 thin-film heterostructures
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Autor/a:
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Zhao, Wenbo; Kim, Jieun; Huang, Xiaoxi; Zhang, Lei; Pesquera, David; Velarde, Gabriel A. P.; Gosavi, Tanay; Lin, Chia-Ching; Nikonov, Dmitri E.; Li, Hai; Young, Ian A.; Ramesh, Ramamoorthy; Martin, Lane W.
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Abstract:
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The rapid development of computing applications demands novel low-energy consumption devices for information processing. Among various candidates, magnetoelectric heterostructures hold promise for meeting the required voltage and power goals. Here, a route to low-voltage control of magnetism in 30 nm FeRh/100 nm 0.68PbMgNbO-0.32PbTiO (PMN-PT) heterostructures is demonstrated wherein the magnetoelectric coupling is achieved via strain-induced changes in the FeRh mediated by voltages applied to the PMN-PT. We describe approaches to achieve high-quality, epitaxial growth of FeRh on the PMN-PT films and, a methodology to probe and quantify magnetoelectric coupling in small thin-film devices via studies of the anomalous Hall effect. By comparing the spin-flop field change induced by temperature and external voltage, the magnetoelectric coupling coefficient is estimated to reach ≈7 × 10 s m at 325 K while applying a −0.75 V bias. |
Fecha de creación:
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30-10-2022 |
Materia(s):
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-Anomalous Hall effect -Magnetoelectric coupling -Multiferroic heterostructures -Nonvolatile -Piezo-strain effect |
Derechos:
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open access
Tots els drets reservats.
https://rightsstatements.org/vocab/InC/1.0/ |
Tipo de documento:
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Article |
Editor:
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Compartir:
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Uri:
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https://ddd.uab.cat/record/251001
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