Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering
Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and thoroughly studied BiFeO3. Here, we investigate the electronic band structure of BiFeO3 using Raman scattering with twelve...
Gespeichert in:
| Veröffentlicht in: | arXiv.org 2016-03 |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | arXiv.org |
| container_volume | |
| creator | Mads Christof Weber Mael Guennou Toulouse, Constance Cazayous, Maximilien Gillet, Yannick Gonze, Xavier Kreisel, Jens |
| description | Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and thoroughly studied BiFeO3. Here, we investigate the electronic band structure of BiFeO3 using Raman scattering with twelve different excitation wavelengths ranging from the blue to the near infrared. We show that resonant Raman signatures can be assigned to direct and indirect electronic transitions, as well as in-gap electronic levels, most likely associated to oxygen vacancies. Their temperature evolution establishes that the remarkable and intriguing variation of the optical band-gap can be related to the shrinking of an indirect electronic band-gap, while the energies for direct electronic transitions remains nearly temperature independent. |
| doi_str_mv | 10.48550/arxiv.1510.03754 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_arxiv</sourceid><recordid>TN_cdi_arxiv_primary_1510_03754</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2077988648</sourcerecordid><originalsourceid>FETCH-LOGICAL-a528-adb40c0baa2ad99cacfe5fb7f12bca9c4e61e06ec27d4b40fe9137ea42d5f7c93</originalsourceid><addsrcrecordid>eNotj11LwzAYhYMgOOZ-gFcGvO5M89G0lzqcCoOB9r68Sd_MjjWtaTrcv7duXh04PBzOQ8hdypYyV4o9QvhpjstUTQUTWskrMuNCpEkuOb8hi2HYM8Z4prlSYkY-S2x7DBDHgBSP3WGMTedp52j8QmrA18kOetp4-tyscStoDGCxpuZEAw6dBx_pB7Tg6WAhRgyN392SaweHARf_OSfl-qVcvSWb7ev76mmTgOJ5ArWRzDIDwKEuCgvWoXJGu5QbC4WVmKXIMrRc13JCHRap0AiS18ppW4g5ub_Mno2rPjQthFP1Z16dzSfi4UL0ofsecYjVvhuDnz5VnGld5Hkmc_ELBZ5dAA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2077988648</pqid></control><display><type>article</type><title>Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering</title><source>arXiv.org</source><source>Free E- Journals</source><creator>Mads Christof Weber ; Mael Guennou ; Toulouse, Constance ; Cazayous, Maximilien ; Gillet, Yannick ; Gonze, Xavier ; Kreisel, Jens</creator><creatorcontrib>Mads Christof Weber ; Mael Guennou ; Toulouse, Constance ; Cazayous, Maximilien ; Gillet, Yannick ; Gonze, Xavier ; Kreisel, Jens</creatorcontrib><description>Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and thoroughly studied BiFeO3. Here, we investigate the electronic band structure of BiFeO3 using Raman scattering with twelve different excitation wavelengths ranging from the blue to the near infrared. We show that resonant Raman signatures can be assigned to direct and indirect electronic transitions, as well as in-gap electronic levels, most likely associated to oxygen vacancies. Their temperature evolution establishes that the remarkable and intriguing variation of the optical band-gap can be related to the shrinking of an indirect electronic band-gap, while the energies for direct electronic transitions remains nearly temperature independent.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1510.03754</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Band structure ; Band structure of solids ; Bismuth ferrite ; Energy gap ; Evolution ; Infrared signatures ; Physics - Materials Science ; Raman spectra</subject><ispartof>arXiv.org, 2016-03</ispartof><rights>2016. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,784,885,27925</link.rule.ids><backlink>$$Uhttps://doi.org/10.48550/arXiv.1510.03754$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1103/PhysRevB.93.125204$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Mads Christof Weber</creatorcontrib><creatorcontrib>Mael Guennou</creatorcontrib><creatorcontrib>Toulouse, Constance</creatorcontrib><creatorcontrib>Cazayous, Maximilien</creatorcontrib><creatorcontrib>Gillet, Yannick</creatorcontrib><creatorcontrib>Gonze, Xavier</creatorcontrib><creatorcontrib>Kreisel, Jens</creatorcontrib><title>Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering</title><title>arXiv.org</title><description>Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and thoroughly studied BiFeO3. Here, we investigate the electronic band structure of BiFeO3 using Raman scattering with twelve different excitation wavelengths ranging from the blue to the near infrared. We show that resonant Raman signatures can be assigned to direct and indirect electronic transitions, as well as in-gap electronic levels, most likely associated to oxygen vacancies. Their temperature evolution establishes that the remarkable and intriguing variation of the optical band-gap can be related to the shrinking of an indirect electronic band-gap, while the energies for direct electronic transitions remains nearly temperature independent.</description><subject>Band structure</subject><subject>Band structure of solids</subject><subject>Bismuth ferrite</subject><subject>Energy gap</subject><subject>Evolution</subject><subject>Infrared signatures</subject><subject>Physics - Materials Science</subject><subject>Raman spectra</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj11LwzAYhYMgOOZ-gFcGvO5M89G0lzqcCoOB9r68Sd_MjjWtaTrcv7duXh04PBzOQ8hdypYyV4o9QvhpjstUTQUTWskrMuNCpEkuOb8hi2HYM8Z4prlSYkY-S2x7DBDHgBSP3WGMTedp52j8QmrA18kOetp4-tyscStoDGCxpuZEAw6dBx_pB7Tg6WAhRgyN392SaweHARf_OSfl-qVcvSWb7ev76mmTgOJ5ArWRzDIDwKEuCgvWoXJGu5QbC4WVmKXIMrRc13JCHRap0AiS18ppW4g5ub_Mno2rPjQthFP1Z16dzSfi4UL0ofsecYjVvhuDnz5VnGld5Hkmc_ELBZ5dAA</recordid><startdate>20160308</startdate><enddate>20160308</enddate><creator>Mads Christof Weber</creator><creator>Mael Guennou</creator><creator>Toulouse, Constance</creator><creator>Cazayous, Maximilien</creator><creator>Gillet, Yannick</creator><creator>Gonze, Xavier</creator><creator>Kreisel, Jens</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20160308</creationdate><title>Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering</title><author>Mads Christof Weber ; Mael Guennou ; Toulouse, Constance ; Cazayous, Maximilien ; Gillet, Yannick ; Gonze, Xavier ; Kreisel, Jens</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a528-adb40c0baa2ad99cacfe5fb7f12bca9c4e61e06ec27d4b40fe9137ea42d5f7c93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Band structure</topic><topic>Band structure of solids</topic><topic>Bismuth ferrite</topic><topic>Energy gap</topic><topic>Evolution</topic><topic>Infrared signatures</topic><topic>Physics - Materials Science</topic><topic>Raman spectra</topic><toplevel>online_resources</toplevel><creatorcontrib>Mads Christof Weber</creatorcontrib><creatorcontrib>Mael Guennou</creatorcontrib><creatorcontrib>Toulouse, Constance</creatorcontrib><creatorcontrib>Cazayous, Maximilien</creatorcontrib><creatorcontrib>Gillet, Yannick</creatorcontrib><creatorcontrib>Gonze, Xavier</creatorcontrib><creatorcontrib>Kreisel, Jens</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mads Christof Weber</au><au>Mael Guennou</au><au>Toulouse, Constance</au><au>Cazayous, Maximilien</au><au>Gillet, Yannick</au><au>Gonze, Xavier</au><au>Kreisel, Jens</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering</atitle><jtitle>arXiv.org</jtitle><date>2016-03-08</date><risdate>2016</risdate><eissn>2331-8422</eissn><abstract>Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and thoroughly studied BiFeO3. Here, we investigate the electronic band structure of BiFeO3 using Raman scattering with twelve different excitation wavelengths ranging from the blue to the near infrared. We show that resonant Raman signatures can be assigned to direct and indirect electronic transitions, as well as in-gap electronic levels, most likely associated to oxygen vacancies. Their temperature evolution establishes that the remarkable and intriguing variation of the optical band-gap can be related to the shrinking of an indirect electronic band-gap, while the energies for direct electronic transitions remains nearly temperature independent.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1510.03754</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2016-03 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_1510_03754 |
| source | arXiv.org; Free E- Journals |
| subjects | Band structure Band structure of solids Bismuth ferrite Energy gap Evolution Infrared signatures Physics - Materials Science Raman spectra |
| title | Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T03%3A58%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_arxiv&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Temperature%20evolution%20of%20the%20band-gap%20in%20BiFeO3%20traced%20by%20resonant%20Raman%20scattering&rft.jtitle=arXiv.org&rft.au=Mads%20Christof%20Weber&rft.date=2016-03-08&rft.eissn=2331-8422&rft_id=info:doi/10.48550/arxiv.1510.03754&rft_dat=%3Cproquest_arxiv%3E2077988648%3C/proquest_arxiv%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2077988648&rft_id=info:pmid/&rfr_iscdi=true |