Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles
We investigated on the strain-induced magnetic anisotropy via the Jahn-Teller (JT) distortion of Cu2+ ions and the magnetoelastic coupling of Co2+ ions in Cu1−xCoxFe2O4 particles. The ideal composition for the tetragonalization of (Cu,Co)Fe2O4 is confirmed for x in the range of 0
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2019-11, Vol.489, p.165380, Article 165380 |
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| container_title | Journal of magnetism and magnetic materials |
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| creator | Latiff, Hawa Kishimoto, Mikio Inoue, Jun-ichiro Kita, Eiji Yanagihara, Hideto Devillers, Thibaut |
| description | We investigated on the strain-induced magnetic anisotropy via the Jahn-Teller (JT) distortion of Cu2+ ions and the magnetoelastic coupling of Co2+ ions in Cu1−xCoxFe2O4 particles. The ideal composition for the tetragonalization of (Cu,Co)Fe2O4 is confirmed for x in the range of 0 |
| doi_str_mv | 10.1016/j.jmmm.2019.165380 |
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The ideal composition for the tetragonalization of (Cu,Co)Fe2O4 is confirmed for x in the range of 0 < x < 0.15. The tetragonally distorted spinel structured (Cu,Co)Fe2O4 particles indicate tetragonal distortion of up to 5.6% as a consequence of the JT effect, and increasing the Co content suppressed the cooperative JT distortion. In-field Mössbauer study revealed a 10% Fe-rich B site due to the anti-site defects. The saturation magnetization increases with x and varies from 26.9 to 36.8 Am2/kg. The coercivity ranges from 68 to 175 kA/m and showed a maximum at x = 0.1. The maximum anisotropy field, Hk estimated from torque measurement is 1590 kA/m (20 kOe), with the magnetic anisotropy constant K = 0.14 M J/m3. The maximum values of Hc and Hk are explained by the mechanism of magnetic anisotropy from both the lattice distortion of Cu2+ and the anisotropy sites of Co2+. We showed that the magnetoelastic theory is applicable qualitatively to explain the large anisotropy obtained in the tetragonally distorted particles.</description><identifier>ISSN: 0304-8853</identifier><identifier>EISSN: 1873-4766</identifier><identifier>DOI: 10.1016/j.jmmm.2019.165380</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Anisotropy ; Cobalt ; Coercivity ; Copper ; Coupling ; Distortion ; Ferrites ; Induced magnetic anisotropy ; Iron ; Jahn-Teller effect ; Magnetic anisotropy ; Magnetic saturation ; Magnetoelastic effect ; Physics ; Spinel ferrite ; Strain analysis</subject><ispartof>Journal of magnetism and magnetic materials, 2019-11, Vol.489, p.165380, Article 165380</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Nov 1, 2019</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c516t-47fc49aca87c1663056333bbbf03612d5654a181e728f7294d6eb06e19c149cd3</citedby><cites>FETCH-LOGICAL-c516t-47fc49aca87c1663056333bbbf03612d5654a181e728f7294d6eb06e19c149cd3</cites><orcidid>0000-0001-7019-5040 ; 0000-0001-6952-138X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmmm.2019.165380$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,780,784,885,3541,27915,27916,45986</link.rule.ids><backlink>$$Uhttps://hal.science/hal-04114841$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Latiff, Hawa</creatorcontrib><creatorcontrib>Kishimoto, Mikio</creatorcontrib><creatorcontrib>Inoue, Jun-ichiro</creatorcontrib><creatorcontrib>Kita, Eiji</creatorcontrib><creatorcontrib>Yanagihara, Hideto</creatorcontrib><creatorcontrib>Devillers, Thibaut</creatorcontrib><title>Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles</title><title>Journal of magnetism and magnetic materials</title><description>We investigated on the strain-induced magnetic anisotropy via the Jahn-Teller (JT) distortion of Cu2+ ions and the magnetoelastic coupling of Co2+ ions in Cu1−xCoxFe2O4 particles. The ideal composition for the tetragonalization of (Cu,Co)Fe2O4 is confirmed for x in the range of 0 < x < 0.15. The tetragonally distorted spinel structured (Cu,Co)Fe2O4 particles indicate tetragonal distortion of up to 5.6% as a consequence of the JT effect, and increasing the Co content suppressed the cooperative JT distortion. In-field Mössbauer study revealed a 10% Fe-rich B site due to the anti-site defects. The saturation magnetization increases with x and varies from 26.9 to 36.8 Am2/kg. The coercivity ranges from 68 to 175 kA/m and showed a maximum at x = 0.1. The maximum anisotropy field, Hk estimated from torque measurement is 1590 kA/m (20 kOe), with the magnetic anisotropy constant K = 0.14 M J/m3. The maximum values of Hc and Hk are explained by the mechanism of magnetic anisotropy from both the lattice distortion of Cu2+ and the anisotropy sites of Co2+. We showed that the magnetoelastic theory is applicable qualitatively to explain the large anisotropy obtained in the tetragonally distorted particles.</description><subject>Anisotropy</subject><subject>Cobalt</subject><subject>Coercivity</subject><subject>Copper</subject><subject>Coupling</subject><subject>Distortion</subject><subject>Ferrites</subject><subject>Induced magnetic anisotropy</subject><subject>Iron</subject><subject>Jahn-Teller effect</subject><subject>Magnetic anisotropy</subject><subject>Magnetic saturation</subject><subject>Magnetoelastic effect</subject><subject>Physics</subject><subject>Spinel ferrite</subject><subject>Strain analysis</subject><issn>0304-8853</issn><issn>1873-4766</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kcFq3DAQhk1pods0L9CToJcG6q3GkmUZeglL0zQs5NDkLLTyeFfGtlxJXtiXyDNXrkuPPQ3M_N8M__xZ9gHoFiiIL922G4ZhW1CotyBKJumrbAOyYjmvhHidbSijPJeyZG-zdyF0lFLgUmyyl5_Razvmdmxmgw0Z9HHEaA3Row0uejddyNlqEk9IHvRpzJ-w79ETbFs0MamaP6MVc9jrsMDGzVNvxyNxLYmYLhzdqPv-QhobovMxHfq0mz_v3M0dFo-cTNonrMfwPnvT6j7g9d96lT3ffXva3ef7x-8_drf73JQgYjLVGl5ro2VlQAhGS8EYOxwOLWUCiqYUJdcgAatCtlVR80bggQqE2gCvTcOuspt170n3avJ20P6inLbq_navlh7lkB7E4QxJ-3HVTt79mjFE1bnZJz9BFYWQQlYgaVIVq8p4F4LH9t9aoGrJSHVqyUgtGak1owR9XSFMXs8WvQrG4piCsD69VzXO_g__DS_dmsw</recordid><startdate>20191101</startdate><enddate>20191101</enddate><creator>Latiff, Hawa</creator><creator>Kishimoto, Mikio</creator><creator>Inoue, Jun-ichiro</creator><creator>Kita, Eiji</creator><creator>Yanagihara, Hideto</creator><creator>Devillers, Thibaut</creator><general>Elsevier B.V</general><general>Elsevier BV</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-7019-5040</orcidid><orcidid>https://orcid.org/0000-0001-6952-138X</orcidid></search><sort><creationdate>20191101</creationdate><title>Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles</title><author>Latiff, Hawa ; Kishimoto, Mikio ; Inoue, Jun-ichiro ; Kita, Eiji ; Yanagihara, Hideto ; Devillers, Thibaut</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c516t-47fc49aca87c1663056333bbbf03612d5654a181e728f7294d6eb06e19c149cd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anisotropy</topic><topic>Cobalt</topic><topic>Coercivity</topic><topic>Copper</topic><topic>Coupling</topic><topic>Distortion</topic><topic>Ferrites</topic><topic>Induced magnetic anisotropy</topic><topic>Iron</topic><topic>Jahn-Teller effect</topic><topic>Magnetic anisotropy</topic><topic>Magnetic saturation</topic><topic>Magnetoelastic effect</topic><topic>Physics</topic><topic>Spinel ferrite</topic><topic>Strain analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Latiff, Hawa</creatorcontrib><creatorcontrib>Kishimoto, Mikio</creatorcontrib><creatorcontrib>Inoue, Jun-ichiro</creatorcontrib><creatorcontrib>Kita, Eiji</creatorcontrib><creatorcontrib>Yanagihara, Hideto</creatorcontrib><creatorcontrib>Devillers, Thibaut</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Latiff, Hawa</au><au>Kishimoto, Mikio</au><au>Inoue, Jun-ichiro</au><au>Kita, Eiji</au><au>Yanagihara, Hideto</au><au>Devillers, Thibaut</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2019-11-01</date><risdate>2019</risdate><volume>489</volume><spage>165380</spage><pages>165380-</pages><artnum>165380</artnum><issn>0304-8853</issn><eissn>1873-4766</eissn><abstract>We investigated on the strain-induced magnetic anisotropy via the Jahn-Teller (JT) distortion of Cu2+ ions and the magnetoelastic coupling of Co2+ ions in Cu1−xCoxFe2O4 particles. The ideal composition for the tetragonalization of (Cu,Co)Fe2O4 is confirmed for x in the range of 0 < x < 0.15. The tetragonally distorted spinel structured (Cu,Co)Fe2O4 particles indicate tetragonal distortion of up to 5.6% as a consequence of the JT effect, and increasing the Co content suppressed the cooperative JT distortion. In-field Mössbauer study revealed a 10% Fe-rich B site due to the anti-site defects. The saturation magnetization increases with x and varies from 26.9 to 36.8 Am2/kg. The coercivity ranges from 68 to 175 kA/m and showed a maximum at x = 0.1. The maximum anisotropy field, Hk estimated from torque measurement is 1590 kA/m (20 kOe), with the magnetic anisotropy constant K = 0.14 M J/m3. The maximum values of Hc and Hk are explained by the mechanism of magnetic anisotropy from both the lattice distortion of Cu2+ and the anisotropy sites of Co2+. We showed that the magnetoelastic theory is applicable qualitatively to explain the large anisotropy obtained in the tetragonally distorted particles.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2019.165380</doi><orcidid>https://orcid.org/0000-0001-7019-5040</orcidid><orcidid>https://orcid.org/0000-0001-6952-138X</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Anisotropy Cobalt Coercivity Copper Coupling Distortion Ferrites Induced magnetic anisotropy Iron Jahn-Teller effect Magnetic anisotropy Magnetic saturation Magnetoelastic effect Physics Spinel ferrite Strain analysis |
| title | Strain-induced magnetic anisotropy via the Jahn-Teller effect and the magnetoelastic coupling of tetragonally distorted (Cu,Co)Fe2O4 particles |
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