Wedge-shaped potential and airy-function electron localization in oxide superlattices
Oxide superlattices and microstructures hold the promise for creating a new class of devices with unprecedented functionalities. Density-functional studies of the recently fabricated, lattice-matched perovskite titanates (SrTiO3)n/(LaTiO3)m reveal a classic wedge-shaped potential well for the monola...
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| Veröffentlicht in: | Physical review letters 2005-05, Vol.94 (17), p.176805.1-176805.4, Article 176805 |
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| container_end_page | 176805.4 |
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| container_issue | 17 |
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| container_title | Physical review letters |
| container_volume | 94 |
| creator | POPOVIC, Z. S SATPATHY, S |
| description | Oxide superlattices and microstructures hold the promise for creating a new class of devices with unprecedented functionalities. Density-functional studies of the recently fabricated, lattice-matched perovskite titanates (SrTiO3)n/(LaTiO3)m reveal a classic wedge-shaped potential well for the monolayer (m = 1) structure, originating from the Coulomb potential of a two-dimensional charged La sheet. The potential in turn confines the electrons in the Airy-function-localized states. Magnetism is suppressed for the monolayer structure, while in structures with a thicker LaTiO3 part, bulk antiferromagnetism is recovered, with a narrow transition region separating the magnetic LaTiO3 and the nonmagnetic SrTiO3. |
| doi_str_mv | 10.1103/PhysRevLett.94.176805 |
| format | Article |
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Magnetism is suppressed for the monolayer structure, while in structures with a thicker LaTiO3 part, bulk antiferromagnetism is recovered, with a narrow transition region separating the magnetic LaTiO3 and the nonmagnetic SrTiO3.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems</subject><subject>Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures</subject><subject>Exact sciences and technology</subject><subject>Physics</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNpNkE1LxDAQhoMo7rr6E5Re9NY1yTRNexTxCxYUcfEY0nTqRrptTVJx_fVWt7Ce5mV43hl4CDlldM4Yhcun1cY_4-cCQ5jnyZzJNKNij0wZlXksGUv2yZRSYHFOqZyQI-_fKaWMp9khmTCR0wS4nJLlK5ZvGPuV7rCMujZgE6yuI92UkbZuE1d9Y4JtmwhrNMENoW6Nru23_tvaJmq_bImR7zt0tQ7BGvTH5KDStceTcc7I8vbm5fo-XjzePVxfLWIDIEOsZWakrFLkKZZoDHKmCw7AizxhFIUAhIJCAjrLBKQmKbgUiIAskSXmBmbkYnu3c-1Hjz6otfUG61o32PZepTITnAsYQLEFjWu9d1ipztm1dhvFqPr1qf75VHmitj6H3tn4oC_WWO5ao8ABOB8B7QctldONsX7HpRkMzgX8AL8dgto</recordid><startdate>20050506</startdate><enddate>20050506</enddate><creator>POPOVIC, Z. 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S ; SATPATHY, S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-a78c77f6e26edecce21ab2332b9410e553e3b0343a88536c4b275ee3e147de9c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems</topic><topic>Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures</topic><topic>Exact sciences and technology</topic><topic>Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>POPOVIC, Z. S</creatorcontrib><creatorcontrib>SATPATHY, S</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>POPOVIC, Z. 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The potential in turn confines the electrons in the Airy-function-localized states. Magnetism is suppressed for the monolayer structure, while in structures with a thicker LaTiO3 part, bulk antiferromagnetism is recovered, with a narrow transition region separating the magnetic LaTiO3 and the nonmagnetic SrTiO3.</abstract><cop>Ridge, NY</cop><pub>American Physical Society</pub><pmid>15904327</pmid><doi>10.1103/PhysRevLett.94.176805</doi><tpages>1</tpages></addata></record> |
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| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology Physics |
| title | Wedge-shaped potential and airy-function electron localization in oxide superlattices |
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