Growth of perpendicularly magnetized thin films on a polymer buffer and voltage-induced change of magnetic anisotropy at the MgO|CoFeB interface

We show that perpendicularly magnetized thin films can be grown onto polyimide, a potentially flexible substrate. With polar Kerr magnetometry, we demonstrate that the coercive field of CoFeB thin film can be modulated by applying a back gate voltage. Our proposed multi-layered structure is suitable...

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Bibliographic Details
Published inAIP Advances Vol. 5; no. 6; pp. 067132 - 067132-6
Main Authors Lam, D. D., Bonell, F., Shiota, Y., Miwa, S., Nozaki, T., Tamura, E., Mizuochi, N., Shinjo, T., Suzuki, Y., Yuasa, S.
Format Journal Article
LanguageEnglish
Published Melville AIP Publishing 01.06.2015
American Institute of Physics
American Institute of Physics- AIP Publishing LLC
AIP Publishing LLC
Subjects
[PHYS]Physics [physics]
Coercivity
Electric potential
Magnetic anisotropy
Magnetic measurement
Multilayers
Physics
QC1-999
Spintronics
Substrates
Thin films
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ISSN2158-3226
2158-3226
DOI10.1063/1.4922602

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Summary:We show that perpendicularly magnetized thin films can be grown onto polyimide, a potentially flexible substrate. With polar Kerr magnetometry, we demonstrate that the coercive field of CoFeB thin film can be modulated by applying a back gate voltage. Our proposed multi-layered structure is suitable for surface-sensitive measurements of the voltage-induced change in anisotropy, and could be used to realize flexible spintronics devices.
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ISSN:2158-3226
2158-3226
DOI:10.1063/1.4922602