Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis
Structural, compositional, and chemical changes during the growth of ion beam-synthesised nanoparticles under electron beam annealing (EBA) at 1,000 degree C in high vacuum conditions were investigated using medium energy ion scattering, energy-resolved X-ray photoelectron spectroscopy, and transmis...
Gespeichert in:
| Veröffentlicht in: | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2012-10, Vol.14 (10), p.1-9 |
|---|---|
| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 9 |
|---|---|
| container_issue | 10 |
| container_start_page | 1 |
| container_title | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology |
| container_volume | 14 |
| creator | Leveneur, Jerome Sanchez, Dario F Kennedy, John Grande, Pedro L Williams, Grant VM Metson, James B Cowie, Bruce CC |
| description | Structural, compositional, and chemical changes during the growth of ion beam-synthesised nanoparticles under electron beam annealing (EBA) at 1,000 degree C in high vacuum conditions were investigated using medium energy ion scattering, energy-resolved X-ray photoelectron spectroscopy, and transmission electron microscopy. The nanoparticles evolved from |
| doi_str_mv | 10.1007/s11051-012-1149-1 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest</sourceid><recordid>TN_cdi_proquest_miscellaneous_1221890479</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1221890479</sourcerecordid><originalsourceid>FETCH-proquest_miscellaneous_12218904793</originalsourceid><addsrcrecordid>eNqVjc1OwzAQhC0EEuXnAbjtsUg19bppEnNFQfRQgZQeequcdClGrg3eBKlvjw-8AKf5NPo0I8QdqgdUqpozolqiVKglYmEknokJLista1NuzzMv6lqqqiwuxRXzp1JYaqMnwq9SDLKzTHvo3NEeAg2uhz4mmvMHeQ_BhshDGvthTMTgArTuFXjspvr-ESxsmvUM1s2qnYENe6BA6XCSWY3-J49u39rcW39ixzfi4t16ptu_vBbT52bz9CK_UvweiYfd0XGfT22gOPIOtcbaqKIyi3-ovypwUdI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1221890479</pqid></control><display><type>article</type><title>Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis</title><source>Springer Nature - Complete Springer Journals</source><creator>Leveneur, Jerome ; Sanchez, Dario F ; Kennedy, John ; Grande, Pedro L ; Williams, Grant VM ; Metson, James B ; Cowie, Bruce CC</creator><creatorcontrib>Leveneur, Jerome ; Sanchez, Dario F ; Kennedy, John ; Grande, Pedro L ; Williams, Grant VM ; Metson, James B ; Cowie, Bruce CC</creatorcontrib><description>Structural, compositional, and chemical changes during the growth of ion beam-synthesised nanoparticles under electron beam annealing (EBA) at 1,000 degree C in high vacuum conditions were investigated using medium energy ion scattering, energy-resolved X-ray photoelectron spectroscopy, and transmission electron microscopy. The nanoparticles evolved from <5 to 30 nm diameter Fe-metal (core)/amorphous Fe sub(x)Si sub(33-x)O sub(y) (shell) structures to single 5-30 nm Fe crystalline nanoparticles sitting on the SiO sub(2) as the annealing time was increased. The stoichiometry of the shell after 60 s EBA at 1,000 degree C was found to be (O sub(2)) sub(x):Fe sub(14 )Si sub(19)O sub(52) with x between 1 and 7.5 where x increases with increasing depth. This amorphous-shell phase has not been previously reported and a reanalysis of the magnetization data shows that it is ferromagnetic with a magnetic moment of about 1.7 mu sub(B) per Fe atom even at 300 K. The low-temperature magnetic hysteresis and magneto-optical Kerr-effect hysteresis at room temperature are enhanced when the core/shell nanoparticles are present. A maximum coercive field of about 740 Oe was found with a corresponding Kerr rotation of about 0.04 degree .</description><identifier>ISSN: 1388-0764</identifier><identifier>EISSN: 1572-896X</identifier><identifier>DOI: 10.1007/s11051-012-1149-1</identifier><language>eng</language><subject>Annealing ; Hysteresis ; Iron ; Nanomaterials ; Nanoparticles ; Nanostructure ; Shells ; Silicon dioxide</subject><ispartof>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2012-10, Vol.14 (10), p.1-9</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids></links><search><creatorcontrib>Leveneur, Jerome</creatorcontrib><creatorcontrib>Sanchez, Dario F</creatorcontrib><creatorcontrib>Kennedy, John</creatorcontrib><creatorcontrib>Grande, Pedro L</creatorcontrib><creatorcontrib>Williams, Grant VM</creatorcontrib><creatorcontrib>Metson, James B</creatorcontrib><creatorcontrib>Cowie, Bruce CC</creatorcontrib><title>Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis</title><title>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</title><description>Structural, compositional, and chemical changes during the growth of ion beam-synthesised nanoparticles under electron beam annealing (EBA) at 1,000 degree C in high vacuum conditions were investigated using medium energy ion scattering, energy-resolved X-ray photoelectron spectroscopy, and transmission electron microscopy. The nanoparticles evolved from <5 to 30 nm diameter Fe-metal (core)/amorphous Fe sub(x)Si sub(33-x)O sub(y) (shell) structures to single 5-30 nm Fe crystalline nanoparticles sitting on the SiO sub(2) as the annealing time was increased. The stoichiometry of the shell after 60 s EBA at 1,000 degree C was found to be (O sub(2)) sub(x):Fe sub(14 )Si sub(19)O sub(52) with x between 1 and 7.5 where x increases with increasing depth. This amorphous-shell phase has not been previously reported and a reanalysis of the magnetization data shows that it is ferromagnetic with a magnetic moment of about 1.7 mu sub(B) per Fe atom even at 300 K. The low-temperature magnetic hysteresis and magneto-optical Kerr-effect hysteresis at room temperature are enhanced when the core/shell nanoparticles are present. A maximum coercive field of about 740 Oe was found with a corresponding Kerr rotation of about 0.04 degree .</description><subject>Annealing</subject><subject>Hysteresis</subject><subject>Iron</subject><subject>Nanomaterials</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Shells</subject><subject>Silicon dioxide</subject><issn>1388-0764</issn><issn>1572-896X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqVjc1OwzAQhC0EEuXnAbjtsUg19bppEnNFQfRQgZQeequcdClGrg3eBKlvjw-8AKf5NPo0I8QdqgdUqpozolqiVKglYmEknokJLista1NuzzMv6lqqqiwuxRXzp1JYaqMnwq9SDLKzTHvo3NEeAg2uhz4mmvMHeQ_BhshDGvthTMTgArTuFXjspvr-ESxsmvUM1s2qnYENe6BA6XCSWY3-J49u39rcW39ixzfi4t16ptu_vBbT52bz9CK_UvweiYfd0XGfT22gOPIOtcbaqKIyi3-ovypwUdI</recordid><startdate>20121001</startdate><enddate>20121001</enddate><creator>Leveneur, Jerome</creator><creator>Sanchez, Dario F</creator><creator>Kennedy, John</creator><creator>Grande, Pedro L</creator><creator>Williams, Grant VM</creator><creator>Metson, James B</creator><creator>Cowie, Bruce CC</creator><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20121001</creationdate><title>Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis</title><author>Leveneur, Jerome ; Sanchez, Dario F ; Kennedy, John ; Grande, Pedro L ; Williams, Grant VM ; Metson, James B ; Cowie, Bruce CC</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_12218904793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Annealing</topic><topic>Hysteresis</topic><topic>Iron</topic><topic>Nanomaterials</topic><topic>Nanoparticles</topic><topic>Nanostructure</topic><topic>Shells</topic><topic>Silicon dioxide</topic><toplevel>online_resources</toplevel><creatorcontrib>Leveneur, Jerome</creatorcontrib><creatorcontrib>Sanchez, Dario F</creatorcontrib><creatorcontrib>Kennedy, John</creatorcontrib><creatorcontrib>Grande, Pedro L</creatorcontrib><creatorcontrib>Williams, Grant VM</creatorcontrib><creatorcontrib>Metson, James B</creatorcontrib><creatorcontrib>Cowie, Bruce CC</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Leveneur, Jerome</au><au>Sanchez, Dario F</au><au>Kennedy, John</au><au>Grande, Pedro L</au><au>Williams, Grant VM</au><au>Metson, James B</au><au>Cowie, Bruce CC</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis</atitle><jtitle>Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology</jtitle><date>2012-10-01</date><risdate>2012</risdate><volume>14</volume><issue>10</issue><spage>1</spage><epage>9</epage><pages>1-9</pages><issn>1388-0764</issn><eissn>1572-896X</eissn><abstract>Structural, compositional, and chemical changes during the growth of ion beam-synthesised nanoparticles under electron beam annealing (EBA) at 1,000 degree C in high vacuum conditions were investigated using medium energy ion scattering, energy-resolved X-ray photoelectron spectroscopy, and transmission electron microscopy. The nanoparticles evolved from <5 to 30 nm diameter Fe-metal (core)/amorphous Fe sub(x)Si sub(33-x)O sub(y) (shell) structures to single 5-30 nm Fe crystalline nanoparticles sitting on the SiO sub(2) as the annealing time was increased. The stoichiometry of the shell after 60 s EBA at 1,000 degree C was found to be (O sub(2)) sub(x):Fe sub(14 )Si sub(19)O sub(52) with x between 1 and 7.5 where x increases with increasing depth. This amorphous-shell phase has not been previously reported and a reanalysis of the magnetization data shows that it is ferromagnetic with a magnetic moment of about 1.7 mu sub(B) per Fe atom even at 300 K. The low-temperature magnetic hysteresis and magneto-optical Kerr-effect hysteresis at room temperature are enhanced when the core/shell nanoparticles are present. A maximum coercive field of about 740 Oe was found with a corresponding Kerr rotation of about 0.04 degree .</abstract><doi>10.1007/s11051-012-1149-1</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1388-0764 |
| ispartof | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology, 2012-10, Vol.14 (10), p.1-9 |
| issn | 1388-0764 1572-896X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1221890479 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Annealing Hysteresis Iron Nanomaterials Nanoparticles Nanostructure Shells Silicon dioxide |
| title | Iron-based bimagnetic core/shell nanostructures in SiO sub(2): a TEM, MEIS, and energy-resolved XPS analysis |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-16T09%3A19%3A44IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Iron-based%20bimagnetic%20core/shell%20nanostructures%20in%20SiO%20sub(2):%20a%20TEM,%20MEIS,%20and%20energy-resolved%20XPS%20analysis&rft.jtitle=Journal%20of%20nanoparticle%20research%20:%20an%20interdisciplinary%20forum%20for%20nanoscale%20science%20and%20technology&rft.au=Leveneur,%20Jerome&rft.date=2012-10-01&rft.volume=14&rft.issue=10&rft.spage=1&rft.epage=9&rft.pages=1-9&rft.issn=1388-0764&rft.eissn=1572-896X&rft_id=info:doi/10.1007/s11051-012-1149-1&rft_dat=%3Cproquest%3E1221890479%3C/proquest%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1221890479&rft_id=info:pmid/&rfr_iscdi=true |