In situ investigation of the early stage of TiO{sub 2} epitaxy on (001) SrTiO{sub 3}
We report on a systematic study of the growth of epitaxial TiO{sub 2} films deposited by pulsed laser deposition on Ti-terminated SrTiO{sub 3} (001) single crystals. By using in situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy, and s...
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| Veröffentlicht in: | The Journal of chemical physics 2011-07, Vol.135 (3) |
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| creator | Radovic, M. CNR-SPIN, Complesso Universitario Monte S. Angelo, Via Cintia I-80126 Napoli Salluzzo, M. Vaglio, R. Granozio, F. Miletto Dipartimento di Fisica, Universita 'Federico II' di Napoli, Piazzale Tecchio, I-80126 Ristic, Z. Departement de Physique de la Matiere Condensee, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva 4 Di Capua, R. Dipartimento S.pe.S., Universita degli Studi del Molise - Via De Sanctis, I-86100 Campobasso Lampis, N. Laborvetro srl, via Calamattia 6, I-09134 Cagliari |
| description | We report on a systematic study of the growth of epitaxial TiO{sub 2} films deposited by pulsed laser deposition on Ti-terminated SrTiO{sub 3} (001) single crystals. By using in situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy, and scanning probe microscopy, we show that the stabilization of the anatase (001) phase is preceded by the growth of a few nanometers thick pseudomorphic Sr{sub x}TiO{sub 2+y} (x, y < 1) intermediate layer. The data demonstrate that the formation of this intermediate phase is related to the activation of a long range Sr migration from the SrTiO{sub 3} substrate into the film. Our results enrich the phase diagram of the Sr-Ti-O system under epitaxial strain opening a route for the study of the electronic and dielectric properties of the reported Sr-deficient SrTiO{sub 3} phase. |
| doi_str_mv | 10.1063/1.3613637 |
| format | Article |
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Angelo, Via Cintia I-80126 Napoli ; Salluzzo, M. ; Vaglio, R. ; Granozio, F. Miletto ; Dipartimento di Fisica, Universita 'Federico II' di Napoli, Piazzale Tecchio, I-80126 ; Ristic, Z. ; Departement de Physique de la Matiere Condensee, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva 4 ; Di Capua, R. ; Dipartimento S.pe.S., Universita degli Studi del Molise - Via De Sanctis, I-86100 Campobasso ; Lampis, N. ; Laborvetro srl, via Calamattia 6, I-09134 Cagliari</creator><creatorcontrib>Radovic, M. ; CNR-SPIN, Complesso Universitario Monte S. Angelo, Via Cintia I-80126 Napoli ; Salluzzo, M. ; Vaglio, R. ; Granozio, F. Miletto ; Dipartimento di Fisica, Universita 'Federico II' di Napoli, Piazzale Tecchio, I-80126 ; Ristic, Z. ; Departement de Physique de la Matiere Condensee, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva 4 ; Di Capua, R. ; Dipartimento S.pe.S., Universita degli Studi del Molise - Via De Sanctis, I-86100 Campobasso ; Lampis, N. ; Laborvetro srl, via Calamattia 6, I-09134 Cagliari</creatorcontrib><description>We report on a systematic study of the growth of epitaxial TiO{sub 2} films deposited by pulsed laser deposition on Ti-terminated SrTiO{sub 3} (001) single crystals. By using in situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy, and scanning probe microscopy, we show that the stabilization of the anatase (001) phase is preceded by the growth of a few nanometers thick pseudomorphic Sr{sub x}TiO{sub 2+y} (x, y < 1) intermediate layer. The data demonstrate that the formation of this intermediate phase is related to the activation of a long range Sr migration from the SrTiO{sub 3} substrate into the film. Our results enrich the phase diagram of the Sr-Ti-O system under epitaxial strain opening a route for the study of the electronic and dielectric properties of the reported Sr-deficient SrTiO{sub 3} phase.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.3613637</identifier><language>eng</language><publisher>United States</publisher><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; DIELECTRIC PROPERTIES ; ELECTRON DIFFRACTION ; ENERGY BEAM DEPOSITION ; EPITAXY ; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ; LASER RADIATION ; LAYERS ; MATERIALS SCIENCE ; MONOCRYSTALS ; PHASE DIAGRAMS ; PULSED IRRADIATION ; SEMICONDUCTOR MATERIALS ; STRONTIUM TITANATES ; TITANIUM OXIDES ; X RADIATION ; X-RAY PHOTOELECTRON SPECTROSCOPY</subject><ispartof>The Journal of chemical physics, 2011-07, Vol.135 (3)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,781,785,886,27929,27930</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22038648$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Radovic, M.</creatorcontrib><creatorcontrib>CNR-SPIN, Complesso Universitario Monte S. 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By using in situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy, and scanning probe microscopy, we show that the stabilization of the anatase (001) phase is preceded by the growth of a few nanometers thick pseudomorphic Sr{sub x}TiO{sub 2+y} (x, y < 1) intermediate layer. The data demonstrate that the formation of this intermediate phase is related to the activation of a long range Sr migration from the SrTiO{sub 3} substrate into the film. Our results enrich the phase diagram of the Sr-Ti-O system under epitaxial strain opening a route for the study of the electronic and dielectric properties of the reported Sr-deficient SrTiO{sub 3} phase.</description><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>DIELECTRIC PROPERTIES</subject><subject>ELECTRON DIFFRACTION</subject><subject>ENERGY BEAM DEPOSITION</subject><subject>EPITAXY</subject><subject>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</subject><subject>LASER RADIATION</subject><subject>LAYERS</subject><subject>MATERIALS SCIENCE</subject><subject>MONOCRYSTALS</subject><subject>PHASE DIAGRAMS</subject><subject>PULSED IRRADIATION</subject><subject>SEMICONDUCTOR MATERIALS</subject><subject>STRONTIUM TITANATES</subject><subject>TITANIUM OXIDES</subject><subject>X RADIATION</subject><subject>X-RAY PHOTOELECTRON SPECTROSCOPY</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqNjT0LwjAURYMoWD8G_8EDFx2qL0lJ21kUnRzsLrGkNSKpNE9RxP9uBd2dLpx7uJexEccZRyXnfCYVl0rGLRZwTNIwVim2WYAoeJgqVF3W8_6EiDwWUcCyjQNv6QrW3YwnW2qylYOqADoaMLo-P8CTLs0HZXb79NcDiBeYiyV9f0DjTpqtKezqXytfA9Yp9Nmb4Tf7bLxaZot1WDUPe59bMvkxr5wzOe2FQJmoKJH_WW-4j0OZ</recordid><startdate>20110721</startdate><enddate>20110721</enddate><creator>Radovic, M.</creator><creator>CNR-SPIN, Complesso Universitario Monte S. 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Miletto</au><au>Dipartimento di Fisica, Universita 'Federico II' di Napoli, Piazzale Tecchio, I-80126</au><au>Ristic, Z.</au><au>Departement de Physique de la Matiere Condensee, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva 4</au><au>Di Capua, R.</au><au>Dipartimento S.pe.S., Universita degli Studi del Molise - Via De Sanctis, I-86100 Campobasso</au><au>Lampis, N.</au><au>Laborvetro srl, via Calamattia 6, I-09134 Cagliari</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>In situ investigation of the early stage of TiO{sub 2} epitaxy on (001) SrTiO{sub 3}</atitle><jtitle>The Journal of chemical physics</jtitle><date>2011-07-21</date><risdate>2011</risdate><volume>135</volume><issue>3</issue><issn>0021-9606</issn><eissn>1089-7690</eissn><abstract>We report on a systematic study of the growth of epitaxial TiO{sub 2} films deposited by pulsed laser deposition on Ti-terminated SrTiO{sub 3} (001) single crystals. By using in situ reflection high energy electron diffraction, low energy electron diffraction, x-ray photoemission spectroscopy, and scanning probe microscopy, we show that the stabilization of the anatase (001) phase is preceded by the growth of a few nanometers thick pseudomorphic Sr{sub x}TiO{sub 2+y} (x, y < 1) intermediate layer. The data demonstrate that the formation of this intermediate phase is related to the activation of a long range Sr migration from the SrTiO{sub 3} substrate into the film. Our results enrich the phase diagram of the Sr-Ti-O system under epitaxial strain opening a route for the study of the electronic and dielectric properties of the reported Sr-deficient SrTiO{sub 3} phase.</abstract><cop>United States</cop><doi>10.1063/1.3613637</doi></addata></record> |
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| subjects | CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY DIELECTRIC PROPERTIES ELECTRON DIFFRACTION ENERGY BEAM DEPOSITION EPITAXY INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY LASER RADIATION LAYERS MATERIALS SCIENCE MONOCRYSTALS PHASE DIAGRAMS PULSED IRRADIATION SEMICONDUCTOR MATERIALS STRONTIUM TITANATES TITANIUM OXIDES X RADIATION X-RAY PHOTOELECTRON SPECTROSCOPY |
| title | In situ investigation of the early stage of TiO{sub 2} epitaxy on (001) SrTiO{sub 3} |
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