Journal article
Core/shell bimagnetic microwires with asymmetric shell: MOKE and FMR behavior
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v 588, 171399
15 Dec 2023
Abstract
A new type of multilayered microwires with a partially covering shell and bimagnetic character is here introduced. A precursor Pyrex-coated Fe-based microwire was fabricated by quenching and drawing technique, and subsequently an outer magnetic shell was deposited by magnetron sputtering covering only partly the precursor microwire (contrary to previously reported fully covered wires). Particularly, an amorphous magnetically soft core (Fe77.5B15Si7.5) was selected in this study and a polycrystalline shell (FeNi soft or Co hard) covered only half of microwire along the axis. After performing a geometry and surface roughness characterization, their surface azimuthal static magnetic profile was determined by magneto-optic Kerr-magnetometer, MOKE. In addition, the ferromagnetic resonance, FMR, response was experimentally studied by Network Analyzer up to 16 GHz frequency where the contributions of internal core and partly covering shell are analyzed and compared with fully covered microwires. The magnetoelastic behavior of such asymmetric bimagnetic microwires open up new perspectives to employ such materials for sensing and biomedical tweezer applications.
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Details
- Title
- Core/shell bimagnetic microwires with asymmetric shell: MOKE and FMR behavior
- Publication Details
- JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, v 588, 171399
- Publisher
- ELSEVIER; AMSTERDAM
- Grant note
- This research was supported by funds provided through the Russian Federal Academic Leadership Program Priority 2030 at the Immanuel Kant Baltic Federal University, project number 123012700017-2 and by the Regional Government of Madrid under project S2018/NMT-4321 NANOMAGCOST-CM. Authors thank to S. Shevyrtalov for AFM measurements.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Drexel University
- Web of Science ID
- WOS:001111878800001
- Scopus ID
- 2-s2.0-85175160155
- Other Identifier
- 991021860732504721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Physics, Condensed Matter