Growth and characterisation of Gd5(SixGe1−x)4 thin film Hadimani, Ravi Jiles, David Melikhov, Y. Jiles, David
dc.contributor.department Electrical and Computer Engineering 2018-02-14T09:47:53.000 2020-06-30T02:03:12Z 2020-06-30T02:03:12Z Tue Jan 01 00:00:00 UTC 2013 2014-08-04 2013-01-01
dc.description.abstract <p>We report for the first time successful growth of magnetic thin films containing the Gd5(Six Ge1−x)4 phase, which is expected to show giant magnetocaloric properties. The film wasdeposited by Pulsed Laser Deposition (PLD) on a (001) silicon wafer at 200  °C from a polycrystalline Gd5Si2.09 Ge 1.91 target prepared by arc melting. PLD was achieved using a femto second laser with a repetition rate of 1 kHz, and a pulse energy of up to 3.5 mJ. The average film thickness was measured to be 400 nm using a Scanning Electron Microscopy and the composition of the film was analyzed using Energy Dispersive Spectroscopy and found to be close to the target composition. X-Ray Diffraction analysis confirmed the presence of Gd5Si2Ge 2 monoclinic structure. Magnetic moment vs. magnetic field measurement confirmed that the film was ferromagnetic at a temperature of 200 K. The transition temperature of the film was determined from a plot of magnetic moment vs. temperature. The transition temperature was between 280 and 300 K which is close to the transition temperature of the bulk material.</p>
dc.description.comments <p>The following article appeared in <em>Journal of Applied Physics</em> 113 (2013): 17A935 and may be found at <a href="" target="_blank"></a>.</p>
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dc.identifier archive/
dc.identifier.articleid 1023
dc.identifier.contextkey 5904103
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ece_pubs/29
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 23:12:47 UTC 2022
dc.source.uri 10.1063/1.4799975
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.keywords Ames Laboratory
dc.subject.keywords Germanium
dc.subject.keywords Pulsed laser deposition
dc.subject.keywords Thin films
dc.subject.keywords Magnetic films
dc.subject.keywords Magnetic moments
dc.title Growth and characterisation of Gd5(SixGe1−x)4 thin film
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication a75a044c-d11e-44cd-af4f-dab1d83339ff
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