Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers

We have performed composition depth profiles and other structural experiments on Gd/Co multilayers and bilayers. Analysis of Auger depth profiles indicates a strongly asymmetric diffusion, especially of Co into the Gd layers. In multilayers, it is found that Co diffuses throughout the Gd layers and...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of applied physics 2000-03, Vol.87 (5), p.2483-2489
Hauptverfasser: Andrés, J. P., Sacedón, J. L., Colino, J., Riveiro, J. M.
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 2489
container_issue 5
container_start_page 2483
container_title Journal of applied physics
container_volume 87
creator Andrés, J. P.
Sacedón, J. L.
Colino, J.
Riveiro, J. M.
description We have performed composition depth profiles and other structural experiments on Gd/Co multilayers and bilayers. Analysis of Auger depth profiles indicates a strongly asymmetric diffusion, especially of Co into the Gd layers. In multilayers, it is found that Co diffuses throughout the Gd layers and forms a Gd1−xCox amorphous alloy (x=0.29–0.35) that is limited at nearly the eutectic composition (x=0.37). Therefore, if the Co layers are nominally not too thin (≳3 nm), the multilayer mainly comprises an amorphous layers of composition around Gd0.7Co0.3 and layers of pure Co. Thin Co layers (3–7 nm) present broad halos in x-ray diffraction scans at wave vectors characteristics of pure cobalt. Thick layers (≳10 nm) show crystalline peaks with a coherence size (ξ⊥) shorter than its own layer thickness, suggesting the existence of amorphous phases next to the interface. This can be explained by the growth of pure and amorphous Co up to a thickness of 2–4 nm on the amorphous Gd alloy seed, but further Co deposition consists of hcp crystalline grains.
doi_str_mv 10.1063/1.372207
format Article
fullrecord <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1063_1_372207</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1063_1_372207</sourcerecordid><originalsourceid>FETCH-LOGICAL-c225t-3208fa262bb12d6de26c29253e5a283407534061ae67bb7d13ca65f8d6f5578b3</originalsourceid><addsrcrecordid>eNotkEtLxDAYRYMoWEfBn5Clm84kX8yjSyk6Dgy4GdclzQMjbVOSVJh_r-PM5l64B-7iIPRIyZoSwTZ0zSQAkVeookQ1teScXKOKEKC1amRzi-5y_iaEUsWaCh12U3HJBu-XHOKElxmXiMuXw24pzpRgsInjHHMoJ6wni39CScEHo_-XMOGt3bQRj8tQwqCPLuV7dOP1kN3DpVfo8-310L7X-4_trn3Z1waAl5oBUV6DgL6nYIV1IAw0wJnjGhR7JpL_haDaCdn30lJmtOBeWeE5l6pnK_R0_jUp5pyc7-YURp2OHSXdyUZHu7MN9gv0_lHb</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers</title><source>AIP Journals Complete</source><source>AIP Digital Archive</source><creator>Andrés, J. P. ; Sacedón, J. L. ; Colino, J. ; Riveiro, J. M.</creator><creatorcontrib>Andrés, J. P. ; Sacedón, J. L. ; Colino, J. ; Riveiro, J. M.</creatorcontrib><description>We have performed composition depth profiles and other structural experiments on Gd/Co multilayers and bilayers. Analysis of Auger depth profiles indicates a strongly asymmetric diffusion, especially of Co into the Gd layers. In multilayers, it is found that Co diffuses throughout the Gd layers and forms a Gd1−xCox amorphous alloy (x=0.29–0.35) that is limited at nearly the eutectic composition (x=0.37). Therefore, if the Co layers are nominally not too thin (≳3 nm), the multilayer mainly comprises an amorphous layers of composition around Gd0.7Co0.3 and layers of pure Co. Thin Co layers (3–7 nm) present broad halos in x-ray diffraction scans at wave vectors characteristics of pure cobalt. Thick layers (≳10 nm) show crystalline peaks with a coherence size (ξ⊥) shorter than its own layer thickness, suggesting the existence of amorphous phases next to the interface. This can be explained by the growth of pure and amorphous Co up to a thickness of 2–4 nm on the amorphous Gd alloy seed, but further Co deposition consists of hcp crystalline grains.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.372207</identifier><language>eng</language><ispartof>Journal of applied physics, 2000-03, Vol.87 (5), p.2483-2489</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c225t-3208fa262bb12d6de26c29253e5a283407534061ae67bb7d13ca65f8d6f5578b3</citedby><cites>FETCH-LOGICAL-c225t-3208fa262bb12d6de26c29253e5a283407534061ae67bb7d13ca65f8d6f5578b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Andrés, J. P.</creatorcontrib><creatorcontrib>Sacedón, J. L.</creatorcontrib><creatorcontrib>Colino, J.</creatorcontrib><creatorcontrib>Riveiro, J. M.</creatorcontrib><title>Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers</title><title>Journal of applied physics</title><description>We have performed composition depth profiles and other structural experiments on Gd/Co multilayers and bilayers. Analysis of Auger depth profiles indicates a strongly asymmetric diffusion, especially of Co into the Gd layers. In multilayers, it is found that Co diffuses throughout the Gd layers and forms a Gd1−xCox amorphous alloy (x=0.29–0.35) that is limited at nearly the eutectic composition (x=0.37). Therefore, if the Co layers are nominally not too thin (≳3 nm), the multilayer mainly comprises an amorphous layers of composition around Gd0.7Co0.3 and layers of pure Co. Thin Co layers (3–7 nm) present broad halos in x-ray diffraction scans at wave vectors characteristics of pure cobalt. Thick layers (≳10 nm) show crystalline peaks with a coherence size (ξ⊥) shorter than its own layer thickness, suggesting the existence of amorphous phases next to the interface. This can be explained by the growth of pure and amorphous Co up to a thickness of 2–4 nm on the amorphous Gd alloy seed, but further Co deposition consists of hcp crystalline grains.</description><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNotkEtLxDAYRYMoWEfBn5Clm84kX8yjSyk6Dgy4GdclzQMjbVOSVJh_r-PM5l64B-7iIPRIyZoSwTZ0zSQAkVeookQ1teScXKOKEKC1amRzi-5y_iaEUsWaCh12U3HJBu-XHOKElxmXiMuXw24pzpRgsInjHHMoJ6wni39CScEHo_-XMOGt3bQRj8tQwqCPLuV7dOP1kN3DpVfo8-310L7X-4_trn3Z1waAl5oBUV6DgL6nYIV1IAw0wJnjGhR7JpL_haDaCdn30lJmtOBeWeE5l6pnK_R0_jUp5pyc7-YURp2OHSXdyUZHu7MN9gv0_lHb</recordid><startdate>20000301</startdate><enddate>20000301</enddate><creator>Andrés, J. P.</creator><creator>Sacedón, J. L.</creator><creator>Colino, J.</creator><creator>Riveiro, J. M.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20000301</creationdate><title>Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers</title><author>Andrés, J. P. ; Sacedón, J. L. ; Colino, J. ; Riveiro, J. M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c225t-3208fa262bb12d6de26c29253e5a283407534061ae67bb7d13ca65f8d6f5578b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Andrés, J. P.</creatorcontrib><creatorcontrib>Sacedón, J. L.</creatorcontrib><creatorcontrib>Colino, J.</creatorcontrib><creatorcontrib>Riveiro, J. M.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Andrés, J. P.</au><au>Sacedón, J. L.</au><au>Colino, J.</au><au>Riveiro, J. M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers</atitle><jtitle>Journal of applied physics</jtitle><date>2000-03-01</date><risdate>2000</risdate><volume>87</volume><issue>5</issue><spage>2483</spage><epage>2489</epage><pages>2483-2489</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>We have performed composition depth profiles and other structural experiments on Gd/Co multilayers and bilayers. Analysis of Auger depth profiles indicates a strongly asymmetric diffusion, especially of Co into the Gd layers. In multilayers, it is found that Co diffuses throughout the Gd layers and forms a Gd1−xCox amorphous alloy (x=0.29–0.35) that is limited at nearly the eutectic composition (x=0.37). Therefore, if the Co layers are nominally not too thin (≳3 nm), the multilayer mainly comprises an amorphous layers of composition around Gd0.7Co0.3 and layers of pure Co. Thin Co layers (3–7 nm) present broad halos in x-ray diffraction scans at wave vectors characteristics of pure cobalt. Thick layers (≳10 nm) show crystalline peaks with a coherence size (ξ⊥) shorter than its own layer thickness, suggesting the existence of amorphous phases next to the interface. This can be explained by the growth of pure and amorphous Co up to a thickness of 2–4 nm on the amorphous Gd alloy seed, but further Co deposition consists of hcp crystalline grains.</abstract><doi>10.1063/1.372207</doi><tpages>7</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0021-8979
ispartof Journal of applied physics, 2000-03, Vol.87 (5), p.2483-2489
issn 0021-8979
1089-7550
language eng
recordid cdi_crossref_primary_10_1063_1_372207
source AIP Journals Complete; AIP Digital Archive
title Interdiffusion up to the eutectic composition and vitrification in Gd/Co multilayers
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-10T21%3A32%3A55IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Interdiffusion%20up%20to%20the%20eutectic%20composition%20and%20vitrification%20in%20Gd/Co%20multilayers&rft.jtitle=Journal%20of%20applied%20physics&rft.au=Andr%C3%A9s,%20J.%20P.&rft.date=2000-03-01&rft.volume=87&rft.issue=5&rft.spage=2483&rft.epage=2489&rft.pages=2483-2489&rft.issn=0021-8979&rft.eissn=1089-7550&rft_id=info:doi/10.1063/1.372207&rft_dat=%3Ccrossref%3E10_1063_1_372207%3C/crossref%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true