Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams
Fe49Co33Ni18 nanowire arrays (175 nm in diameter and lengths ranging from 5 to 32μm) were fabricated into nanopores of hard-anodized aluminum oxide templates using pulsed ac electrodeposition technique. Hysteresis loop measurements indicated that increasing the length decreases coercivity and square...
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| Format: | Article |
| Language: | English |
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Nanoscience and Nanotechnology Research Center, University of Kashan
2014-10-01
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| Series: | Journal of Nanostructures |
| Subjects: | |
| Online Access: | http://jns.kashanu.ac.ir/article_8492_c692e1c629f146525f954c573bc492d9.pdf |
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| author | S. Samanifar M. AlmasiKashi A. Ramazani |
| author_facet | S. Samanifar M. AlmasiKashi A. Ramazani |
| author_sort | S. Samanifar |
| collection | DOAJ |
| description | Fe49Co33Ni18 nanowire arrays (175 nm in diameter and lengths ranging from 5 to 32μm) were fabricated into nanopores of hard-anodized aluminum oxide templates using pulsed ac electrodeposition technique. Hysteresis loop measurements indicated that increasing the length decreases coercivity and squareness values (from 274 Oe and 0.58 to200 Oe and 0.105, respectively), indicating the increase in magnetostatic interactions between the nanowires (NWs).On the other hand, first-order reversal curve measurements showed a linear correlation between the magnetostatic interactions and length of NWs. It was also found that with increasing length, the domain structure of NWs changed from single-domain to pseudo single-domain state. A multidomain-like behavior is also seen for the longest NWs length.Increasing the length of NWs resulted in an increase inthe interaction and decrease in the array coercive field as beingsmaller than that of individual NWs (.The observed CFD component in the FORC diagrams of FeCoNi NWs with shorter lengths was a consequence ofnon-uniform length distributions. |
| first_indexed | 2024-12-22T21:10:53Z |
| format | Article |
| id | doaj.art-f46c6349ff12416f874d0c7874334527 |
| institution | Directory Open Access Journal |
| issn | 2251-7871 2251-788X |
| language | English |
| last_indexed | 2024-12-22T21:10:53Z |
| publishDate | 2014-10-01 |
| publisher | Nanoscience and Nanotechnology Research Center, University of Kashan |
| record_format | Article |
| series | Journal of Nanostructures |
| spelling | doaj.art-f46c6349ff12416f874d0c78743345272022-12-21T18:12:32ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2014-10-014444945810.7508/jns.2014.04.0078492Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve DiagramsS. Samanifar0M. AlmasiKashi1A. Ramazani2Department of Physics, University of Kashan, Kashan, 87317-51167, IranDepartment of Physics, University of Kashan, Kashan, 87317-51167, Iran | Institute of Nanoscience& Nanotechnology, University of Kashan, Kashan, 87317-51167, IranDepartment of Physics, University of Kashan, Kashan, 87317-51167, Iran | Institute of Nanoscience& Nanotechnology, University of Kashan, Kashan, 87317-51167, IranFe49Co33Ni18 nanowire arrays (175 nm in diameter and lengths ranging from 5 to 32μm) were fabricated into nanopores of hard-anodized aluminum oxide templates using pulsed ac electrodeposition technique. Hysteresis loop measurements indicated that increasing the length decreases coercivity and squareness values (from 274 Oe and 0.58 to200 Oe and 0.105, respectively), indicating the increase in magnetostatic interactions between the nanowires (NWs).On the other hand, first-order reversal curve measurements showed a linear correlation between the magnetostatic interactions and length of NWs. It was also found that with increasing length, the domain structure of NWs changed from single-domain to pseudo single-domain state. A multidomain-like behavior is also seen for the longest NWs length.Increasing the length of NWs resulted in an increase inthe interaction and decrease in the array coercive field as beingsmaller than that of individual NWs (.The observed CFD component in the FORC diagrams of FeCoNi NWs with shorter lengths was a consequence ofnon-uniform length distributions.http://jns.kashanu.ac.ir/article_8492_c692e1c629f146525f954c573bc492d9.pdfFeCoNi nanowiresFORC diagramsPulsed ac electrodepositionMagnetostatic interactions |
| spellingShingle | S. Samanifar M. AlmasiKashi A. Ramazani Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams Journal of Nanostructures FeCoNi nanowires FORC diagrams Pulsed ac electrodeposition Magnetostatic interactions |
| title | Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams |
| title_full | Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams |
| title_fullStr | Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams |
| title_full_unstemmed | Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams |
| title_short | Magnetic Properties of Fe49Co33Ni18Nanowire ArraysStudied by First-Order Reversal Curve Diagrams |
| title_sort | magnetic properties of fe49co33ni18nanowire arraysstudied by first order reversal curve diagrams |
| topic | FeCoNi nanowires FORC diagrams Pulsed ac electrodeposition Magnetostatic interactions |
| url | http://jns.kashanu.ac.ir/article_8492_c692e1c629f146525f954c573bc492d9.pdf |
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