Combined STM, LEED and DFT study of Ag(1 0 0) exposed to oxygen near atmospheric pressures
We have investigated the interaction of molecular oxygen with the Ag(1 0 0) surface in a temperature range from 130 K to 470 K and an oxygen partial pressure ranging up to 10 mbar by scanning tunneling microscopy, low electron energy diffraction, Auger electron spectroscopy and ab initio density fun...
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| Veröffentlicht in: | Surface science 2006-02, Vol.600 (3), p.617-624 |
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| container_title | Surface science |
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| creator | Costina, I. Schmid, M. Schiechl, H. Gajdoš, M. Stierle, A. Kumaragurubaran, S. Hafner, J. Dosch, H. Varga, P. |
| description | We have investigated the interaction of molecular oxygen with the Ag(1
0
0) surface in a temperature range from 130
K to 470
K and an oxygen partial pressure ranging up to 10
mbar by scanning tunneling microscopy, low electron energy diffraction, Auger electron spectroscopy and ab initio density functional calculations. We find that at 130
K, following oxygen exposures of 6000
Langmuirs O
2, the individual oxygen atoms are randomly distributed on the surface. When the sample is exposed to 10
mbar O
2 at room temperature, small,
p(2
×
2) reconstructed patches are formed on the surface. After oxidation at ≈470
K and 10
mbar O
2 pressure the surface undergoes a
c(4
×
6) reconstruction coexisting with a (6
×
6) superstructure. By ab initio thermodynamic calculations it is shown that the
c(4
×
6) reconstruction is an oxygen adsorption induced superstructure which is thermodynamically stable for an intermediate range of oxygen chemical potential. |
| doi_str_mv | 10.1016/j.susc.2005.11.020 |
| format | Article |
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0
0) surface in a temperature range from 130
K to 470
K and an oxygen partial pressure ranging up to 10
mbar by scanning tunneling microscopy, low electron energy diffraction, Auger electron spectroscopy and ab initio density functional calculations. We find that at 130
K, following oxygen exposures of 6000
Langmuirs O
2, the individual oxygen atoms are randomly distributed on the surface. When the sample is exposed to 10
mbar O
2 at room temperature, small,
p(2
×
2) reconstructed patches are formed on the surface. After oxidation at ≈470
K and 10
mbar O
2 pressure the surface undergoes a
c(4
×
6) reconstruction coexisting with a (6
×
6) superstructure. By ab initio thermodynamic calculations it is shown that the
c(4
×
6) reconstruction is an oxygen adsorption induced superstructure which is thermodynamically stable for an intermediate range of oxygen chemical potential.</description><identifier>ISSN: 0039-6028</identifier><identifier>EISSN: 1879-2758</identifier><identifier>DOI: 10.1016/j.susc.2005.11.020</identifier><identifier>CODEN: SUSCAS</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Cross-disciplinary physics: materials science; rheology ; Density functional calculations ; Exact sciences and technology ; Low energy electron diffraction ; Oxidation ; Physics ; Scanning tunneling microscopy ; Surface relaxation and reconstruction</subject><ispartof>Surface science, 2006-02, Vol.600 (3), p.617-624</ispartof><rights>2005 Elsevier B.V.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-661b880e5dec2854231a012abba7ffbc304fbe423c759ed4fd9a52c9a0e297f23</citedby><cites>FETCH-LOGICAL-c361t-661b880e5dec2854231a012abba7ffbc304fbe423c759ed4fd9a52c9a0e297f23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.susc.2005.11.020$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17476757$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Costina, I.</creatorcontrib><creatorcontrib>Schmid, M.</creatorcontrib><creatorcontrib>Schiechl, H.</creatorcontrib><creatorcontrib>Gajdoš, M.</creatorcontrib><creatorcontrib>Stierle, A.</creatorcontrib><creatorcontrib>Kumaragurubaran, S.</creatorcontrib><creatorcontrib>Hafner, J.</creatorcontrib><creatorcontrib>Dosch, H.</creatorcontrib><creatorcontrib>Varga, P.</creatorcontrib><title>Combined STM, LEED and DFT study of Ag(1 0 0) exposed to oxygen near atmospheric pressures</title><title>Surface science</title><description>We have investigated the interaction of molecular oxygen with the Ag(1
0
0) surface in a temperature range from 130
K to 470
K and an oxygen partial pressure ranging up to 10
mbar by scanning tunneling microscopy, low electron energy diffraction, Auger electron spectroscopy and ab initio density functional calculations. We find that at 130
K, following oxygen exposures of 6000
Langmuirs O
2, the individual oxygen atoms are randomly distributed on the surface. When the sample is exposed to 10
mbar O
2 at room temperature, small,
p(2
×
2) reconstructed patches are formed on the surface. After oxidation at ≈470
K and 10
mbar O
2 pressure the surface undergoes a
c(4
×
6) reconstruction coexisting with a (6
×
6) superstructure. By ab initio thermodynamic calculations it is shown that the
c(4
×
6) reconstruction is an oxygen adsorption induced superstructure which is thermodynamically stable for an intermediate range of oxygen chemical potential.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Density functional calculations</subject><subject>Exact sciences and technology</subject><subject>Low energy electron diffraction</subject><subject>Oxidation</subject><subject>Physics</subject><subject>Scanning tunneling microscopy</subject><subject>Surface relaxation and reconstruction</subject><issn>0039-6028</issn><issn>1879-2758</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kE9r3DAQxUVJodu0X6AnXRIaqN2R_Ec29BI2m7awJYdsL70IWR4lWnYtR2OX7Levlg30ljnMwPB7b5jH2CcBuQBRf93mNJPNJUCVC5GDhDdsIRrVZlJVzRlbABRtVoNs3rH3RFtIVbbVgv1Zhn3nB-z5_ebXF75erW64GXp-c7vhNM39gQfHrx8-Cw4crjg-j4ESPAUeng8POPABTeRm2gcaHzF6y8eIRHNqH9hbZ3aEH1_mOft9u9osf2Tru-8_l9frzBa1mLK6Fl3TAFY9WtlUpSyEASFN1xnlXGcLKF2HaW1V1WJfur41lbStAZStcrI4Z5cn3zGGpxlp0ntPFnc7M2CYScumKUVdQALlCbQxEEV0eox-b-JBC9DHGPVWH2PUxxi1EDrFmEQXL-6GrNm5aAbr6b9SlapWlUrctxOH6dW_HqMm63Gw2PuIdtJ98K-d-QeP_obI</recordid><startdate>20060201</startdate><enddate>20060201</enddate><creator>Costina, I.</creator><creator>Schmid, M.</creator><creator>Schiechl, H.</creator><creator>Gajdoš, M.</creator><creator>Stierle, A.</creator><creator>Kumaragurubaran, S.</creator><creator>Hafner, J.</creator><creator>Dosch, H.</creator><creator>Varga, P.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20060201</creationdate><title>Combined STM, LEED and DFT study of Ag(1 0 0) exposed to oxygen near atmospheric pressures</title><author>Costina, I. ; Schmid, M. ; Schiechl, H. ; Gajdoš, M. ; Stierle, A. ; Kumaragurubaran, S. ; Hafner, J. ; Dosch, H. ; Varga, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c361t-661b880e5dec2854231a012abba7ffbc304fbe423c759ed4fd9a52c9a0e297f23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Density functional calculations</topic><topic>Exact sciences and technology</topic><topic>Low energy electron diffraction</topic><topic>Oxidation</topic><topic>Physics</topic><topic>Scanning tunneling microscopy</topic><topic>Surface relaxation and reconstruction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Costina, I.</creatorcontrib><creatorcontrib>Schmid, M.</creatorcontrib><creatorcontrib>Schiechl, H.</creatorcontrib><creatorcontrib>Gajdoš, M.</creatorcontrib><creatorcontrib>Stierle, A.</creatorcontrib><creatorcontrib>Kumaragurubaran, S.</creatorcontrib><creatorcontrib>Hafner, J.</creatorcontrib><creatorcontrib>Dosch, H.</creatorcontrib><creatorcontrib>Varga, P.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Surface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Costina, I.</au><au>Schmid, M.</au><au>Schiechl, H.</au><au>Gajdoš, M.</au><au>Stierle, A.</au><au>Kumaragurubaran, S.</au><au>Hafner, J.</au><au>Dosch, H.</au><au>Varga, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Combined STM, LEED and DFT study of Ag(1 0 0) exposed to oxygen near atmospheric pressures</atitle><jtitle>Surface science</jtitle><date>2006-02-01</date><risdate>2006</risdate><volume>600</volume><issue>3</issue><spage>617</spage><epage>624</epage><pages>617-624</pages><issn>0039-6028</issn><eissn>1879-2758</eissn><coden>SUSCAS</coden><abstract>We have investigated the interaction of molecular oxygen with the Ag(1
0
0) surface in a temperature range from 130
K to 470
K and an oxygen partial pressure ranging up to 10
mbar by scanning tunneling microscopy, low electron energy diffraction, Auger electron spectroscopy and ab initio density functional calculations. We find that at 130
K, following oxygen exposures of 6000
Langmuirs O
2, the individual oxygen atoms are randomly distributed on the surface. When the sample is exposed to 10
mbar O
2 at room temperature, small,
p(2
×
2) reconstructed patches are formed on the surface. After oxidation at ≈470
K and 10
mbar O
2 pressure the surface undergoes a
c(4
×
6) reconstruction coexisting with a (6
×
6) superstructure. By ab initio thermodynamic calculations it is shown that the
c(4
×
6) reconstruction is an oxygen adsorption induced superstructure which is thermodynamically stable for an intermediate range of oxygen chemical potential.</abstract><cop>Lausanne</cop><cop>Amsterdam</cop><cop>New York, NY</cop><pub>Elsevier B.V</pub><doi>10.1016/j.susc.2005.11.020</doi><tpages>8</tpages></addata></record> |
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| ispartof | Surface science, 2006-02, Vol.600 (3), p.617-624 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Density functional calculations Exact sciences and technology Low energy electron diffraction Oxidation Physics Scanning tunneling microscopy Surface relaxation and reconstruction |
| title | Combined STM, LEED and DFT study of Ag(1 0 0) exposed to oxygen near atmospheric pressures |
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