Combinatorial study of Fe-Co-V hard magnetic thin films

Thin film libraries of Fe-Co-V were fabricated by combinatorial sputtering to study magnetic and structural properties over wide ranges of composition and thickness by high-throughput methods: synchrotron X-ray diffraction, magnetometry, composition, and thickness were measured across the Fe-Co-V li...

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Vydané v:	Science and technology of advanced materials Ročník 18; číslo 1; s. 231 - 238
Hlavní autori:	Fackler, Sean W., Alexandrakis, Vasileios, König, Dennis, Kusne, A. Gilad, Gao, Tieren, Kramer, Matthew J., Stasak, Drew, Lopez, Kenny, Zayac, Brad, Mehta, Apurva, Ludwig, Alfred, Takeuchi, Ichiro
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	United States Taylor & Francis 01.01.2017 Taylor & Francis Ltd IOP Publishing Taylor & Francis Group
Predmet:	203 Magnetics / Spintronics / Superconductors 306 Thin film / Coatings 50 Energy Materials Anisotropy Cobalt Coercivity Combinatorial analysis combinatorial thin film Composition Domain walls Focus on Materials Genome and Informatics high-throughput Hysteresis loops Iron Kerr magnetooptical effect Libraries Magnetic measurement Magnetic properties Magnetic thin films Magnetization reversal Magnetometers MATERIALS SCIENCE permanent magnet Synchrotron radiation Thickness measurement Thin films Vicalloy 50 Energy Materials permanent magnet 203 Magnetics / Spintronics / Superconductors combinatorial thin film 306 Thin film / Coatings Vicalloy high-throughput
ISSN:	1468-6996, 1878-5514
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Popis
Shrnutí:	Thin film libraries of Fe-Co-V were fabricated by combinatorial sputtering to study magnetic and structural properties over wide ranges of composition and thickness by high-throughput methods: synchrotron X-ray diffraction, magnetometry, composition, and thickness were measured across the Fe-Co-V libraries. In-plane magnetic hysteresis loops were shown to have a coercive field of 23.9 kA m -1 (300 G) and magnetization of 1000 kA m -1 . The out-of-plane direction revealed enhanced coercive fields of 207 kA m -1 (2.6 kG) which was attributed to the shape anisotropy of column grains observed with electron microscopy. Angular dependence of the switching field showed that the magnetization reversal mechanism is governed by 180° domain wall pinning. In the thickness-dependent combinatorial study, co-sputtered composition spreads had a thickness ranging from 50 to 500 nm and (Fe 70 Co 30 ) 100-x V x compositions of x = 2-80. Comparison of high-throughput magneto-optical Kerr effect and traditional vibrating sample magnetometer measurements show agreement of trends in coercive fields across large composition and thickness regions.
Bibliografia:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 USDOE IS-J-9322 NMP3-SL-2012-280670; AC02-07CH11358; AC02-76SF00515
ISSN:	1468-6996 1878-5514
DOI:	10.1080/14686996.2017.1287520