Artificial control of layer thickness in Co-Pt alloy multilayer nanowires fabricated by dual-bath electrodeposition in nanoporous polycarbonate membranes
We have successfully controlled the layer thickness in Co-Pt alloy multilayer nanowires with a diameter of approximately 130 nm through dual-bath electrodeposition into nanoporous polycarbonate templates. The Co-Pt alloy multilayer nanowires were found to have compositions of cobalt-rich (Co _71 Pt...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
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| Series: | Applied Physics Express |
| Subjects: | |
| Online Access: | https://doi.org/10.35848/1882-0786/adbcf6 |
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| Summary: | We have successfully controlled the layer thickness in Co-Pt alloy multilayer nanowires with a diameter of approximately 130 nm through dual-bath electrodeposition into nanoporous polycarbonate templates. The Co-Pt alloy multilayer nanowires were found to have compositions of cobalt-rich (Co _71 Pt _29 ) and platinum-rich (Co _13 Pt _87 ) for various layer thicknesses ranging from 3.3 to 427 nm, as confirmed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations. Both X-ray diffraction (XRD) and TEM analyses revealed a face-centered cubic (FCC) alloy phase corresponding to the Co-Pt alloy in each layer. We could measure the increasing magnetoresistance (MR) ratio by reducing the layer thickness and demonstrate MR measurements resulting from domain wall motion. |
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| ISSN: | 1882-0786 |