Investigating phase transition temperatures of size separated gadolinium silicide magnetic nanoparticles Hunagund, Shivakumar Hadimani, Ravi Harstad, Shane El-Gendy, Ahmed Gupta, Shalbh Pecharsky, Vitalij Hadimani, Ravi
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering 2018-05-02T04:05:22.000 2020-06-29T23:20:56Z 2020-06-29T23:20:56Z 2018-05-01
dc.description.abstract <p>Gadolinium silicide (Gd5Si4) nanoparticles (NPs) exhibit different properties compared to their parent bulk materials due to finite size, shape, and surface effects. NPs were prepared by high energy ball-milling of the as-cast Gd5Si4ingot and size separated into eight fractions using time sensitive sedimentation in an applied dc magnetic field with average particle sizes ranging from 700 nm to 82 nm. The largest Gd5Si4 NPs order ferromagnetically at 316 K. A second anomaly observed at 110 K can be ascribed to a Gd5Si3 impurity. As the particle sizes decrease, the volume fraction of Gd5Si3 phase increases at the expense of the Gd5Si4 phase, and the ferromagnetic transition temperature of Gd5Si4 is reduced from 316 K to 310 K, while the ordering of the minor phase is independent of the particle size, remaining at 110 K.</p>
dc.identifier archive/
dc.identifier.articleid 1161
dc.identifier.contextkey 12028753
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/154
dc.language.iso en
dc.relation.ispartofseries IS-J 9624
dc.source.bitstream archive/|||Fri Jan 14 20:40:32 UTC 2022
dc.source.uri 10.1063/1.5007686
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Nanoscience and Nanotechnology
dc.subject.disciplines Physics
dc.subject.keywords Nanoparticles
dc.subject.keywords Paramagnetic materials
dc.subject.keywords Materials processing
dc.subject.keywords Silicon
dc.subject.keywords Chemical analysis
dc.subject.keywords Phase transitions
dc.subject.keywords Nanomagnetism
dc.subject.keywords X-ray diffraction
dc.subject.keywords Ferromagnetic materials
dc.title Investigating phase transition temperatures of size separated gadolinium silicide magnetic nanoparticles
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 1e6eedeb-1439-4685-87a3-649084ca6582
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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