The surface diffusion of V and Cr atoms on tungsten
The dependence of activation energy Q and surface diffusion coefficient D on the concentration of adatoms θ has been investigated for Cr and V atoms migrating on tungsten. The changes of Q(θ) and D o(θ) could be explained by the lateral interaction of adatoms. The analysis of theoretical formulas ob...
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| Veröffentlicht in: | Surface science 1994-09, Vol.316 (1), p.223-227 |
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| container_title | Surface science |
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| creator | Vladimirov, G.G. Starodubov, A.G. |
| description | The dependence of activation energy
Q and surface diffusion coefficient
D on the concentration of adatoms θ has been investigated for Cr and V atoms migrating on tungsten. The changes of
Q(θ) and
D
o(θ) could be explained by the lateral interaction of adatoms. The analysis of theoretical formulas obtained by D.A. Reed and G. Ehrlich for surface diffusion coefficient
D is given. It is proposed to characterize the nonlinearity of the calculated curves of In
D(θ,
T) as a function of 1/
T by a correlation coefficient. An experimental dependence qualitatively fits the calculated curve. These results show that the sequence of the lateral interaction energy decrease is Cr, V, Ti. It is in agreement with the features of the electron structure of the atoms. |
| doi_str_mv | 10.1016/0039-6028(94)91142-8 |
| format | Article |
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Q and surface diffusion coefficient
D on the concentration of adatoms θ has been investigated for Cr and V atoms migrating on tungsten. The changes of
Q(θ) and
D
o(θ) could be explained by the lateral interaction of adatoms. The analysis of theoretical formulas obtained by D.A. Reed and G. Ehrlich for surface diffusion coefficient
D is given. It is proposed to characterize the nonlinearity of the calculated curves of In
D(θ,
T) as a function of 1/
T by a correlation coefficient. An experimental dependence qualitatively fits the calculated curve. These results show that the sequence of the lateral interaction energy decrease is Cr, V, Ti. It is in agreement with the features of the electron structure of the atoms.</description><identifier>ISSN: 0039-6028</identifier><identifier>EISSN: 1879-2758</identifier><identifier>DOI: 10.1016/0039-6028(94)91142-8</identifier><language>eng</language><publisher>Elsevier B.V</publisher><ispartof>Surface science, 1994-09, Vol.316 (1), p.223-227</ispartof><rights>1994</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c250t-5d858208dd35f71f85521b8fbb7223e47731cdad0c382f9ed0f32ac6a16c15d93</citedby><cites>FETCH-LOGICAL-c250t-5d858208dd35f71f85521b8fbb7223e47731cdad0c382f9ed0f32ac6a16c15d93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0039602894911428$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Vladimirov, G.G.</creatorcontrib><creatorcontrib>Starodubov, A.G.</creatorcontrib><title>The surface diffusion of V and Cr atoms on tungsten</title><title>Surface science</title><description>The dependence of activation energy
Q and surface diffusion coefficient
D on the concentration of adatoms θ has been investigated for Cr and V atoms migrating on tungsten. The changes of
Q(θ) and
D
o(θ) could be explained by the lateral interaction of adatoms. The analysis of theoretical formulas obtained by D.A. Reed and G. Ehrlich for surface diffusion coefficient
D is given. It is proposed to characterize the nonlinearity of the calculated curves of In
D(θ,
T) as a function of 1/
T by a correlation coefficient. An experimental dependence qualitatively fits the calculated curve. These results show that the sequence of the lateral interaction energy decrease is Cr, V, Ti. It is in agreement with the features of the electron structure of the atoms.</description><issn>0039-6028</issn><issn>1879-2758</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1994</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKv_wEVWoovRPCfJRpDiCwpuqtuQJjcaaSc1mRH8906tuPRuDly-c-AchE4puaSEtleEcNO0hOlzIy4MpYI1eg9NqFamYUrqfTT5Qw7RUa3vZDxh5ATxxRvgOpToPOCQYhxqyh3OEb9g1wU8K9j1eV3x-OyH7rX20B2jg-hWFU5-dYqe724Xs4dm_nT_OLuZN55J0jcyaKkZ0SFwGRWNWkpGlzoul4oxDkIpTn1wgXiuWTQQSOTM-dbR1lMZDJ-is13upuSPAWpv16l6WK1cB3molimmhG75CIod6EuutUC0m5LWrnxZSux2Ibutb7f1rRH2ZyGrR9v1zgZjic8ExVafoPMQUgHf25DT_wHfsXRraA</recordid><startdate>19940901</startdate><enddate>19940901</enddate><creator>Vladimirov, G.G.</creator><creator>Starodubov, A.G.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19940901</creationdate><title>The surface diffusion of V and Cr atoms on tungsten</title><author>Vladimirov, G.G. ; Starodubov, A.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c250t-5d858208dd35f71f85521b8fbb7223e47731cdad0c382f9ed0f32ac6a16c15d93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1994</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vladimirov, G.G.</creatorcontrib><creatorcontrib>Starodubov, A.G.</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vladimirov, G.G.</au><au>Starodubov, A.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The surface diffusion of V and Cr atoms on tungsten</atitle><jtitle>Surface science</jtitle><date>1994-09-01</date><risdate>1994</risdate><volume>316</volume><issue>1</issue><spage>223</spage><epage>227</epage><pages>223-227</pages><issn>0039-6028</issn><eissn>1879-2758</eissn><abstract>The dependence of activation energy
Q and surface diffusion coefficient
D on the concentration of adatoms θ has been investigated for Cr and V atoms migrating on tungsten. The changes of
Q(θ) and
D
o(θ) could be explained by the lateral interaction of adatoms. The analysis of theoretical formulas obtained by D.A. Reed and G. Ehrlich for surface diffusion coefficient
D is given. It is proposed to characterize the nonlinearity of the calculated curves of In
D(θ,
T) as a function of 1/
T by a correlation coefficient. An experimental dependence qualitatively fits the calculated curve. These results show that the sequence of the lateral interaction energy decrease is Cr, V, Ti. It is in agreement with the features of the electron structure of the atoms.</abstract><pub>Elsevier B.V</pub><doi>10.1016/0039-6028(94)91142-8</doi><tpages>5</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| title | The surface diffusion of V and Cr atoms on tungsten |
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