Exchange bias in barium ferrite/magnetite nanocomposites
Exchange bias which accompanies a magnetic hysteresis loop shift along field axis or increase in coercivity, occurs due to exchange interactions between ferromagnetic (FM) and antiferromagnetic (AFM) or in ferrimagnetic nanoparticles/nanolayers systems. Mixture of barium ferrite (BaFe 12 O 19 ) and...
Gespeichert in:
| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2017-06, Vol.123 (6), p.1-8, Article 437 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 8 |
|---|---|
| container_issue | 6 |
| container_start_page | 1 |
| container_title | Applied physics. A, Materials science & processing |
| container_volume | 123 |
| creator | Molaei, M. J. Ataie, A. Raygan, S. Picken, S. J. |
| description | Exchange bias which accompanies a magnetic hysteresis loop shift along field axis or increase in coercivity, occurs due to exchange interactions between ferromagnetic (FM) and antiferromagnetic (AFM) or in ferrimagnetic nanoparticles/nanolayers systems. Mixture of barium ferrite (BaFe
12
O
19
) and graphite was mechanically milled for different times. Phase analysis, particles morphology, magnetic properties at room temperature and magnetic properties after field cooling at 4 k were measured via XRD, HRTEM, VSM and SQUID, respectively. A nanocomposite of BaFe
12
O
19
/Fe
3
O
4
forms after 20 and 40 h of milling. HRTEM images revealed that the nanocomposite consists of crystallites of both phases in intimate contact with crystallite sizes below 20 nm after 20 h milling. Field cooling of the 20- and 40-h milled samples up to 4 k resulted in exchange bias phenomenon. The shift in hysteresis loop for 20- and 40-h milled samples was 204 and 254 Oe, respectively. In spite of the mostly observed exchange coupling systems being ferromagnetic/antiferromagnetic systems, in this research the exchange coupling occurred between ferrimagnetic phases. The large difference between coercivity values at 300 and 4 k revealed that superparamagnetic particles constitute a large volume fraction of the milled nanocomposites. |
| doi_str_mv | 10.1007/s00339-017-1034-y |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1902155698</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1902155698</sourcerecordid><originalsourceid>FETCH-LOGICAL-c316t-18d19755352a6564e333c66ffd4ba260ad25ecb073518db604f8c0af0c8d2fd23</originalsourceid><addsrcrecordid>eNp1kE1LxDAQhoMouK7-AG8Fz3EnmSRtj7KsH7DgRc8hTZO1i_0wacH-e7PUgxfnMjPwvDPwEHLL4J4B5JsIgFhSYDllgILOZ2TFBHIKCuGcrKAUOS2wVJfkKsYjpBKcr0ix-7Yfpju4rGpMzJouq0xopjbzLoRmdJvWHDo3pinrTNfbvh36mLZ4TS68-Yzu5revyfvj7m37TPevTy_bhz21yNRIWVGzMpcSJTdKKuEQ0SrlfS0qwxWYmktnK8hRJrRSIHxhwXiwRc19zXFN7pa7Q-i_JhdHfeyn0KWXmpXAmZSqLBLFFsqGPsbgvB5C05owawb6JEgvgnQSpE-C9JwyfMnExCYD4c_lf0M_RphoaA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1902155698</pqid></control><display><type>article</type><title>Exchange bias in barium ferrite/magnetite nanocomposites</title><source>SpringerNature Journals</source><creator>Molaei, M. J. ; Ataie, A. ; Raygan, S. ; Picken, S. J.</creator><creatorcontrib>Molaei, M. J. ; Ataie, A. ; Raygan, S. ; Picken, S. J.</creatorcontrib><description>Exchange bias which accompanies a magnetic hysteresis loop shift along field axis or increase in coercivity, occurs due to exchange interactions between ferromagnetic (FM) and antiferromagnetic (AFM) or in ferrimagnetic nanoparticles/nanolayers systems. Mixture of barium ferrite (BaFe
12
O
19
) and graphite was mechanically milled for different times. Phase analysis, particles morphology, magnetic properties at room temperature and magnetic properties after field cooling at 4 k were measured via XRD, HRTEM, VSM and SQUID, respectively. A nanocomposite of BaFe
12
O
19
/Fe
3
O
4
forms after 20 and 40 h of milling. HRTEM images revealed that the nanocomposite consists of crystallites of both phases in intimate contact with crystallite sizes below 20 nm after 20 h milling. Field cooling of the 20- and 40-h milled samples up to 4 k resulted in exchange bias phenomenon. The shift in hysteresis loop for 20- and 40-h milled samples was 204 and 254 Oe, respectively. In spite of the mostly observed exchange coupling systems being ferromagnetic/antiferromagnetic systems, in this research the exchange coupling occurred between ferrimagnetic phases. The large difference between coercivity values at 300 and 4 k revealed that superparamagnetic particles constitute a large volume fraction of the milled nanocomposites.</description><identifier>ISSN: 0947-8396</identifier><identifier>EISSN: 1432-0630</identifier><identifier>DOI: 10.1007/s00339-017-1034-y</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Antiferromagnetism ; Applied physics ; Barium compounds ; Barium hexaferrite ; Bias ; Characterization and Evaluation of Materials ; Coercivity ; Condensed Matter Physics ; Cooling ; Coupling ; Crystallites ; Exchanging ; Ferromagnetism ; Hysteresis loops ; Iron oxides ; Machines ; Magnetic properties ; Magnetism ; Manufacturing ; Materials science ; Nanocomposites ; Nanoparticles ; Nanotechnology ; Optical and Electronic Materials ; Physics ; Physics and Astronomy ; Processes ; Room temperature ; Surfaces and Interfaces ; Thin Films</subject><ispartof>Applied physics. A, Materials science & processing, 2017-06, Vol.123 (6), p.1-8, Article 437</ispartof><rights>Springer-Verlag Berlin Heidelberg 2017</rights><rights>Copyright Springer Science & Business Media 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-18d19755352a6564e333c66ffd4ba260ad25ecb073518db604f8c0af0c8d2fd23</citedby><cites>FETCH-LOGICAL-c316t-18d19755352a6564e333c66ffd4ba260ad25ecb073518db604f8c0af0c8d2fd23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00339-017-1034-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00339-017-1034-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Molaei, M. J.</creatorcontrib><creatorcontrib>Ataie, A.</creatorcontrib><creatorcontrib>Raygan, S.</creatorcontrib><creatorcontrib>Picken, S. J.</creatorcontrib><title>Exchange bias in barium ferrite/magnetite nanocomposites</title><title>Applied physics. A, Materials science & processing</title><addtitle>Appl. Phys. A</addtitle><description>Exchange bias which accompanies a magnetic hysteresis loop shift along field axis or increase in coercivity, occurs due to exchange interactions between ferromagnetic (FM) and antiferromagnetic (AFM) or in ferrimagnetic nanoparticles/nanolayers systems. Mixture of barium ferrite (BaFe
12
O
19
) and graphite was mechanically milled for different times. Phase analysis, particles morphology, magnetic properties at room temperature and magnetic properties after field cooling at 4 k were measured via XRD, HRTEM, VSM and SQUID, respectively. A nanocomposite of BaFe
12
O
19
/Fe
3
O
4
forms after 20 and 40 h of milling. HRTEM images revealed that the nanocomposite consists of crystallites of both phases in intimate contact with crystallite sizes below 20 nm after 20 h milling. Field cooling of the 20- and 40-h milled samples up to 4 k resulted in exchange bias phenomenon. The shift in hysteresis loop for 20- and 40-h milled samples was 204 and 254 Oe, respectively. In spite of the mostly observed exchange coupling systems being ferromagnetic/antiferromagnetic systems, in this research the exchange coupling occurred between ferrimagnetic phases. The large difference between coercivity values at 300 and 4 k revealed that superparamagnetic particles constitute a large volume fraction of the milled nanocomposites.</description><subject>Antiferromagnetism</subject><subject>Applied physics</subject><subject>Barium compounds</subject><subject>Barium hexaferrite</subject><subject>Bias</subject><subject>Characterization and Evaluation of Materials</subject><subject>Coercivity</subject><subject>Condensed Matter Physics</subject><subject>Cooling</subject><subject>Coupling</subject><subject>Crystallites</subject><subject>Exchanging</subject><subject>Ferromagnetism</subject><subject>Hysteresis loops</subject><subject>Iron oxides</subject><subject>Machines</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Manufacturing</subject><subject>Materials science</subject><subject>Nanocomposites</subject><subject>Nanoparticles</subject><subject>Nanotechnology</subject><subject>Optical and Electronic Materials</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Processes</subject><subject>Room temperature</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><issn>0947-8396</issn><issn>1432-0630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhoMouK7-AG8Fz3EnmSRtj7KsH7DgRc8hTZO1i_0wacH-e7PUgxfnMjPwvDPwEHLL4J4B5JsIgFhSYDllgILOZ2TFBHIKCuGcrKAUOS2wVJfkKsYjpBKcr0ix-7Yfpju4rGpMzJouq0xopjbzLoRmdJvWHDo3pinrTNfbvh36mLZ4TS68-Yzu5revyfvj7m37TPevTy_bhz21yNRIWVGzMpcSJTdKKuEQ0SrlfS0qwxWYmktnK8hRJrRSIHxhwXiwRc19zXFN7pa7Q-i_JhdHfeyn0KWXmpXAmZSqLBLFFsqGPsbgvB5C05owawb6JEgvgnQSpE-C9JwyfMnExCYD4c_lf0M_RphoaA</recordid><startdate>20170601</startdate><enddate>20170601</enddate><creator>Molaei, M. J.</creator><creator>Ataie, A.</creator><creator>Raygan, S.</creator><creator>Picken, S. J.</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20170601</creationdate><title>Exchange bias in barium ferrite/magnetite nanocomposites</title><author>Molaei, M. J. ; Ataie, A. ; Raygan, S. ; Picken, S. J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-18d19755352a6564e333c66ffd4ba260ad25ecb073518db604f8c0af0c8d2fd23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Antiferromagnetism</topic><topic>Applied physics</topic><topic>Barium compounds</topic><topic>Barium hexaferrite</topic><topic>Bias</topic><topic>Characterization and Evaluation of Materials</topic><topic>Coercivity</topic><topic>Condensed Matter Physics</topic><topic>Cooling</topic><topic>Coupling</topic><topic>Crystallites</topic><topic>Exchanging</topic><topic>Ferromagnetism</topic><topic>Hysteresis loops</topic><topic>Iron oxides</topic><topic>Machines</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Manufacturing</topic><topic>Materials science</topic><topic>Nanocomposites</topic><topic>Nanoparticles</topic><topic>Nanotechnology</topic><topic>Optical and Electronic Materials</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Processes</topic><topic>Room temperature</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Molaei, M. J.</creatorcontrib><creatorcontrib>Ataie, A.</creatorcontrib><creatorcontrib>Raygan, S.</creatorcontrib><creatorcontrib>Picken, S. J.</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics. A, Materials science & processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Molaei, M. J.</au><au>Ataie, A.</au><au>Raygan, S.</au><au>Picken, S. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Exchange bias in barium ferrite/magnetite nanocomposites</atitle><jtitle>Applied physics. A, Materials science & processing</jtitle><stitle>Appl. Phys. A</stitle><date>2017-06-01</date><risdate>2017</risdate><volume>123</volume><issue>6</issue><spage>1</spage><epage>8</epage><pages>1-8</pages><artnum>437</artnum><issn>0947-8396</issn><eissn>1432-0630</eissn><abstract>Exchange bias which accompanies a magnetic hysteresis loop shift along field axis or increase in coercivity, occurs due to exchange interactions between ferromagnetic (FM) and antiferromagnetic (AFM) or in ferrimagnetic nanoparticles/nanolayers systems. Mixture of barium ferrite (BaFe
12
O
19
) and graphite was mechanically milled for different times. Phase analysis, particles morphology, magnetic properties at room temperature and magnetic properties after field cooling at 4 k were measured via XRD, HRTEM, VSM and SQUID, respectively. A nanocomposite of BaFe
12
O
19
/Fe
3
O
4
forms after 20 and 40 h of milling. HRTEM images revealed that the nanocomposite consists of crystallites of both phases in intimate contact with crystallite sizes below 20 nm after 20 h milling. Field cooling of the 20- and 40-h milled samples up to 4 k resulted in exchange bias phenomenon. The shift in hysteresis loop for 20- and 40-h milled samples was 204 and 254 Oe, respectively. In spite of the mostly observed exchange coupling systems being ferromagnetic/antiferromagnetic systems, in this research the exchange coupling occurred between ferrimagnetic phases. The large difference between coercivity values at 300 and 4 k revealed that superparamagnetic particles constitute a large volume fraction of the milled nanocomposites.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00339-017-1034-y</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0947-8396 |
| ispartof | Applied physics. A, Materials science & processing, 2017-06, Vol.123 (6), p.1-8, Article 437 |
| issn | 0947-8396 1432-0630 |
| language | eng |
| recordid | cdi_proquest_journals_1902155698 |
| source | SpringerNature Journals |
| subjects | Antiferromagnetism Applied physics Barium compounds Barium hexaferrite Bias Characterization and Evaluation of Materials Coercivity Condensed Matter Physics Cooling Coupling Crystallites Exchanging Ferromagnetism Hysteresis loops Iron oxides Machines Magnetic properties Magnetism Manufacturing Materials science Nanocomposites Nanoparticles Nanotechnology Optical and Electronic Materials Physics Physics and Astronomy Processes Room temperature Surfaces and Interfaces Thin Films |
| title | Exchange bias in barium ferrite/magnetite nanocomposites |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T07%3A54%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Exchange%20bias%20in%20barium%20ferrite/magnetite%20nanocomposites&rft.jtitle=Applied%20physics.%20A,%20Materials%20science%20&%20processing&rft.au=Molaei,%20M.%20J.&rft.date=2017-06-01&rft.volume=123&rft.issue=6&rft.spage=1&rft.epage=8&rft.pages=1-8&rft.artnum=437&rft.issn=0947-8396&rft.eissn=1432-0630&rft_id=info:doi/10.1007/s00339-017-1034-y&rft_dat=%3Cproquest_cross%3E1902155698%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1902155698&rft_id=info:pmid/&rfr_iscdi=true |