Effects of Al substitution and thermal annealing on magnetoelectric Ba0.5Sr1.5Zn2Fe12O22 investigated by the enhancement factor of 57Fe nuclear magnetic resonance
The magnetoelectric properties of hexaferrite Ba0.5Sr1.5Zn2Fe12O22 are significantly improved by Al substitution and thermal annealing. Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field i...
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| Veröffentlicht in: | Journal of physics. Condensed matter 2014-04, Vol.26 (14), p.146004-146004 |
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| container_end_page | 146004 |
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| container_issue | 14 |
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| container_title | Journal of physics. Condensed matter |
| container_volume | 26 |
| creator | Kwon, Sangil Kang, Byeongki Kim, Changsoo Jo, Euna Lee, Soonchil Chai, Yi Sheng Chun, Sae Hwan Kim, Kee Hoon |
| description | The magnetoelectric properties of hexaferrite Ba0.5Sr1.5Zn2Fe12O22 are significantly improved by Al substitution and thermal annealing. Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field in such a way as to increase the net magnetic moment of a magnetic unit, even after the field is removed. Al substitution makes magnetoelectric property arise easily by suppressing the easy-plane anisotropy. The effect of thermal annealing is to stabilize the multiferroic state by reducing the number of pinning sites and the electron spin fluctuation. The transverse conic structure gradually changes to the alternating longitudinal conic structure where spins fluctuate more severely. |
| doi_str_mv | 10.1088/0953-8984/26/14/146004 |
| format | Article |
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Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field in such a way as to increase the net magnetic moment of a magnetic unit, even after the field is removed. Al substitution makes magnetoelectric property arise easily by suppressing the easy-plane anisotropy. The effect of thermal annealing is to stabilize the multiferroic state by reducing the number of pinning sites and the electron spin fluctuation. 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Condensed matter</title><addtitle>JPhysCM</addtitle><addtitle>J. Phys.: Condens. Matter</addtitle><description>The magnetoelectric properties of hexaferrite Ba0.5Sr1.5Zn2Fe12O22 are significantly improved by Al substitution and thermal annealing. Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field in such a way as to increase the net magnetic moment of a magnetic unit, even after the field is removed. Al substitution makes magnetoelectric property arise easily by suppressing the easy-plane anisotropy. The effect of thermal annealing is to stabilize the multiferroic state by reducing the number of pinning sites and the electron spin fluctuation. The transverse conic structure gradually changes to the alternating longitudinal conic structure where spins fluctuate more severely.</description><subject>Aluminum - chemistry</subject><subject>Barium - chemistry</subject><subject>Electricity</subject><subject>enhancement factor</subject><subject>Ferric Compounds - chemistry</subject><subject>hexaferrites</subject><subject>Iron Radioisotopes - chemistry</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>Magnetics</subject><subject>Models, Molecular</subject><subject>multiferroics</subject><subject>nuclear magnetic resonance</subject><subject>Strontium - chemistry</subject><subject>Temperature</subject><subject>Zinc - chemistry</subject><issn>0953-8984</issn><issn>1361-648X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptkd1qFDEYhoModq3eQsmZnsxu_idzWEtXhUIPVBBPQibzZZsyk1mTjNDb8UrNsKsgCIEE8rxPPvIidEXJlhKtd6STvNGdFjumdlTUpQgRz9CGckUbJfS352jzF7pAr3J-JJXQXLxEF0woSTWXG_Tr1ntwJePZ4-sR56XPJZSlhDliGwdcHiBNdqznCHYM8YDrxWQPEcoMY02m4PB7S7byc6Jb-T2yPVB2zxgO8SdU18EWGHD_tJowxAcbHUwQC_bWlTmt78p2DzgubgSbzu4qTZDnuNKv0Qtvxwxvzvsl-rq__XLzsbm7__Dp5vquCZRT2XjQWmhpFRGyp-DcwGUrWio6UJZw2g3O0rZTHoAMnPRatNarjnSaDERAzy_Ru5P3mOYfS53dTCE7GEcbYV6yoZLJtqWtZBW9OqNLP8FgjilMNj2ZP_9aAXYCwnw0j_OSYp3cUGLW8szai1l7MUwZKsypvBp6-5-Qm_6hzHHw_Dc7-5eD</recordid><startdate>20140409</startdate><enddate>20140409</enddate><creator>Kwon, Sangil</creator><creator>Kang, Byeongki</creator><creator>Kim, Changsoo</creator><creator>Jo, Euna</creator><creator>Lee, Soonchil</creator><creator>Chai, Yi Sheng</creator><creator>Chun, Sae Hwan</creator><creator>Kim, Kee Hoon</creator><general>IOP Publishing</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>20140409</creationdate><title>Effects of Al substitution and thermal annealing on magnetoelectric Ba0.5Sr1.5Zn2Fe12O22 investigated by the enhancement factor of 57Fe nuclear magnetic resonance</title><author>Kwon, Sangil ; Kang, Byeongki ; Kim, Changsoo ; Jo, Euna ; Lee, Soonchil ; Chai, Yi Sheng ; Chun, Sae Hwan ; Kim, Kee Hoon</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i1315-fe88485a6045b1eccd35747149e6a0319dca1796fee0d30b847af690980d04eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Aluminum - chemistry</topic><topic>Barium - chemistry</topic><topic>Electricity</topic><topic>enhancement factor</topic><topic>Ferric Compounds - chemistry</topic><topic>hexaferrites</topic><topic>Iron Radioisotopes - chemistry</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>Magnetics</topic><topic>Models, Molecular</topic><topic>multiferroics</topic><topic>nuclear magnetic resonance</topic><topic>Strontium - chemistry</topic><topic>Temperature</topic><topic>Zinc - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kwon, Sangil</creatorcontrib><creatorcontrib>Kang, Byeongki</creatorcontrib><creatorcontrib>Kim, Changsoo</creatorcontrib><creatorcontrib>Jo, Euna</creatorcontrib><creatorcontrib>Lee, Soonchil</creatorcontrib><creatorcontrib>Chai, Yi Sheng</creatorcontrib><creatorcontrib>Chun, Sae Hwan</creatorcontrib><creatorcontrib>Kim, Kee Hoon</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of physics. Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kwon, Sangil</au><au>Kang, Byeongki</au><au>Kim, Changsoo</au><au>Jo, Euna</au><au>Lee, Soonchil</au><au>Chai, Yi Sheng</au><au>Chun, Sae Hwan</au><au>Kim, Kee Hoon</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Al substitution and thermal annealing on magnetoelectric Ba0.5Sr1.5Zn2Fe12O22 investigated by the enhancement factor of 57Fe nuclear magnetic resonance</atitle><jtitle>Journal of physics. Condensed matter</jtitle><stitle>JPhysCM</stitle><addtitle>J. Phys.: Condens. Matter</addtitle><date>2014-04-09</date><risdate>2014</risdate><volume>26</volume><issue>14</issue><spage>146004</spage><epage>146004</epage><pages>146004-146004</pages><issn>0953-8984</issn><eissn>1361-648X</eissn><coden>JCOMEL</coden><abstract>The magnetoelectric properties of hexaferrite Ba0.5Sr1.5Zn2Fe12O22 are significantly improved by Al substitution and thermal annealing. Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field in such a way as to increase the net magnetic moment of a magnetic unit, even after the field is removed. Al substitution makes magnetoelectric property arise easily by suppressing the easy-plane anisotropy. The effect of thermal annealing is to stabilize the multiferroic state by reducing the number of pinning sites and the electron spin fluctuation. The transverse conic structure gradually changes to the alternating longitudinal conic structure where spins fluctuate more severely.</abstract><cop>England</cop><pub>IOP Publishing</pub><pmid>24651835</pmid><doi>10.1088/0953-8984/26/14/146004</doi><tpages>1</tpages></addata></record> |
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| subjects | Aluminum - chemistry Barium - chemistry Electricity enhancement factor Ferric Compounds - chemistry hexaferrites Iron Radioisotopes - chemistry Magnetic Resonance Spectroscopy Magnetics Models, Molecular multiferroics nuclear magnetic resonance Strontium - chemistry Temperature Zinc - chemistry |
| title | Effects of Al substitution and thermal annealing on magnetoelectric Ba0.5Sr1.5Zn2Fe12O22 investigated by the enhancement factor of 57Fe nuclear magnetic resonance |
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