Nucleation, growth and structural properties of epitaxial Co-Ag alloy films
Identifieur interne : 000942 ( Main/Exploration ); précédent : 000941; suivant : 000943Nucleation, growth and structural properties of epitaxial Co-Ag alloy films
Auteurs : A. Azizi [Algérie] ; J. Arabski [France] ; A. Dinia [France]Source :
- Applied surface science [ 0169-4332 ] ; 2005.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Granular Co-Ag alloy films elaborated by molecular-beam epitaxy at three temperatures: 20, 250 and 450 °C, have been investigated. The influence of substrate temperatures on the growth and the structural properties is studied, using reflection high-energy electron diffraction (RHEED) and X-ray diffraction (XRD) techniques. For all growth temperatures, the in situ RHEED patterns of the Co-Ag alloys exhibit an in-plane six-fold symmetry, which indicates that the Co and Ag deposits are in epitaxy with the Ru buffer surface. At 20 °C, the RHEED patterns show a unique lattice with diffuse lines, which is a feature of a rough surface. However, at 250 °C, the RHEED patterns show double lines, which indicate the existence of two lattices, associated with Ag and Co metals. RHEED analysis indicates that the Co lattice constant relaxes to its bulk value after a critical thickness of 20 Å, while the Ag has already relaxed at the growth beginning. XRD studies give evidence of a strongly textured alloy films, along the growth direction. It is found that, at 20 °C, Co impurities are embedded in the Ag matrix. However, in the range 250-450 °C, the system segregates and gives the formation of chemically pure entities of Co and Ag.
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream PascalFrancis, to step Corpus: 000187
- to stream PascalFrancis, to step Curation: 000108
- to stream PascalFrancis, to step Checkpoint: 000183
- to stream Main, to step Merge: 000953
- to stream Main, to step Curation: 000942
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Nucleation, growth and structural properties of epitaxial Co-Ag alloy films</title><author><name sortKey="Azizi, A" sort="Azizi, A" uniqKey="Azizi A" first="A." last="Azizi">A. Azizi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire d'Energétique et d'Electrochimie du Solide, Université de Sétif</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Arabski, J" sort="Arabski, J" uniqKey="Arabski J" first="J." last="Arabski">J. Arabski</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institut de Physique et Chimie des Matériaux de Strasbourg (UMR 7504 du CNRS), 23 Rue du Loess, BP 43</s1><s2>67034 Strasbourg</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author><author><name sortKey="Dinia, A" sort="Dinia, A" uniqKey="Dinia A" first="A." last="Dinia">A. Dinia</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institut de Physique et Chimie des Matériaux de Strasbourg (UMR 7504 du CNRS), 23 Rue du Loess, BP 43</s1><s2>67034 Strasbourg</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">05-0311064</idno><date when="2005">2005</date><idno type="stanalyst">PASCAL 05-0311064 INIST</idno><idno type="RBID">Pascal:05-0311064</idno><idno type="wicri:Area/PascalFrancis/Corpus">000187</idno><idno type="wicri:Area/PascalFrancis/Curation">000108</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000183</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000183</idno><idno type="wicri:doubleKey">0169-4332:2005:Azizi A:nucleation:growth:and</idno><idno type="wicri:Area/Main/Merge">000953</idno><idno type="wicri:Area/Main/Curation">000942</idno><idno type="wicri:Area/Main/Exploration">000942</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Nucleation, growth and structural properties of epitaxial Co-Ag alloy films</title><author><name sortKey="Azizi, A" sort="Azizi, A" uniqKey="Azizi A" first="A." last="Azizi">A. Azizi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire d'Energétique et d'Electrochimie du Solide, Université de Sétif</s1><s2>Sétif 19000</s2><s3>DZA</s3><sZ>1 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Sétif 19000</wicri:noRegion></affiliation></author><author><name sortKey="Arabski, J" sort="Arabski, J" uniqKey="Arabski J" first="J." last="Arabski">J. Arabski</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institut de Physique et Chimie des Matériaux de Strasbourg (UMR 7504 du CNRS), 23 Rue du Loess, BP 43</s1><s2>67034 Strasbourg</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author><author><name sortKey="Dinia, A" sort="Dinia, A" uniqKey="Dinia A" first="A." last="Dinia">A. Dinia</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Institut de Physique et Chimie des Matériaux de Strasbourg (UMR 7504 du CNRS), 23 Rue du Loess, BP 43</s1><s2>67034 Strasbourg</s2><s3>FRA</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Alsace (région administrative)</region><settlement type="city">Strasbourg</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Applied surface science</title><title level="j" type="abbreviated">Appl. surf. sci.</title><idno type="ISSN">0169-4332</idno><imprint><date when="2005">2005</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Applied surface science</title><title level="j" type="abbreviated">Appl. surf. sci.</title><idno type="ISSN">0169-4332</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt alloys</term><term>Film growth</term><term>Granular materials</term><term>In situ</term><term>Lattice parameters</term><term>Molecular beam epitaxy</term><term>Nucleation</term><term>RHEED</term><term>Rough surfaces</term><term>Silver alloys</term><term>Surface structure</term><term>Thin films</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Structure surface</term><term>Couche mince</term><term>Nucléation</term><term>Matériau granulaire</term><term>Croissance film</term><term>Epitaxie jet moléculaire</term><term>RHEED</term><term>Diffraction RX</term><term>In situ</term><term>Surface rugueuse</term><term>Paramètre cristallin</term><term>Cobalt alliage</term><term>Argent alliage</term><term>Ag Co</term><term>Alliage AgCo</term><term>6855J</term><term>8115H</term><term>6114H</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Granular Co-Ag alloy films elaborated by molecular-beam epitaxy at three temperatures: 20, 250 and 450 °C, have been investigated. The influence of substrate temperatures on the growth and the structural properties is studied, using reflection high-energy electron diffraction (RHEED) and X-ray diffraction (XRD) techniques. For all growth temperatures, the in situ RHEED patterns of the Co-Ag alloys exhibit an in-plane six-fold symmetry, which indicates that the Co and Ag deposits are in epitaxy with the Ru buffer surface. At 20 °C, the RHEED patterns show a unique lattice with diffuse lines, which is a feature of a rough surface. However, at 250 °C, the RHEED patterns show double lines, which indicate the existence of two lattices, associated with Ag and Co metals. RHEED analysis indicates that the Co lattice constant relaxes to its bulk value after a critical thickness of 20 Å, while the Ag has already relaxed at the growth beginning. XRD studies give evidence of a strongly textured alloy films, along the growth direction. It is found that, at 20 °C, Co impurities are embedded in the Ag matrix. However, in the range 250-450 °C, the system segregates and gives the formation of chemically pure entities of Co and Ag.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>France</li></country><region><li>Alsace (région administrative)</li><li>Grand Est</li></region><settlement><li>Strasbourg</li></settlement></list><tree><country name="Algérie"><noRegion><name sortKey="Azizi, A" sort="Azizi, A" uniqKey="Azizi A" first="A." last="Azizi">A. Azizi</name></noRegion></country><country name="France"><region name="Grand Est"><name sortKey="Arabski, J" sort="Arabski, J" uniqKey="Arabski J" first="J." last="Arabski">J. Arabski</name></region><name sortKey="Dinia, A" sort="Dinia, A" uniqKey="Dinia A" first="A." last="Dinia">A. Dinia</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/CobaltMaghrebV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000942 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000942 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= CobaltMaghrebV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= Pascal:05-0311064
|texte= Nucleation, growth and structural properties of epitaxial Co-Ag alloy films
}}
| This area was generated with Dilib version V0.6.32. |  |