Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite
We have investigated the synthesis conditions, and the magnetic properties of the Sr2Ni2X-type hexagonal ferrite, Sr2Ni2Fe28O46. The Sr2Ni2X-type hexaferrite was synthesized at 1240∘C. The spontaneous magnetization at 5 K was 44.2 μB/f.u., suggesting that most of the Ni2+ ions are at the up-spin oct...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2015-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4934792 |
| _version_ | 1818171850029531136 |
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| author | K. Kamishima T. Mashiko K. Kakizaki M. Sakai K. Watanabe H. Abe |
| author_facet | K. Kamishima T. Mashiko K. Kakizaki M. Sakai K. Watanabe H. Abe |
| author_sort | K. Kamishima |
| collection | DOAJ |
| description | We have investigated the synthesis conditions, and the magnetic properties of the Sr2Ni2X-type hexagonal ferrite, Sr2Ni2Fe28O46. The Sr2Ni2X-type hexaferrite was synthesized at 1240∘C. The spontaneous magnetization at 5 K was 44.2 μB/f.u., suggesting that most of the Ni2+ ions are at the up-spin octahedral sites in the spinel-structure blocks within the model of a Néel-type collinear ferrimagnetic structure. The Curie temperature of the Sr2Ni2X-type hexaferrite was estimated to be TC[Sr2Ni2X] = 472∘C. This is consistent with the difference of the block stacking structures of SrM-type, Sr2Ni2X-type, SrNi2W-type, and nickel spinel ferrites. |
| first_indexed | 2024-12-11T19:03:16Z |
| format | Article |
| id | doaj.art-6747f8048a4940bdae9ae05e8a15a10f |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-11T19:03:16Z |
| publishDate | 2015-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-6747f8048a4940bdae9ae05e8a15a10f2022-12-22T00:53:57ZengAIP Publishing LLCAIP Advances2158-32262015-10-01510107132107132-1010.1063/1.4934792058510ADVSynthesis and magnetic characterization of Sr-based Ni2X-type hexaferriteK. Kamishima0T. Mashiko1K. Kakizaki2M. Sakai3K. Watanabe4H. Abe5Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Saitama 338-8570, JapanGraduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Saitama 338-8570, JapanGraduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Saitama 338-8570, JapanGraduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Saitama 338-8570, JapanBiomolecular Characterization Unit, Center of Sustainable Resource Science, RIKEN, 2-1 Wako, Saitama 351-0198, JapanAdvanced Electronic Materials Center, National Institute of Materials Science, 1-1 Namiki, Tsukuba 305-0044, JapanWe have investigated the synthesis conditions, and the magnetic properties of the Sr2Ni2X-type hexagonal ferrite, Sr2Ni2Fe28O46. The Sr2Ni2X-type hexaferrite was synthesized at 1240∘C. The spontaneous magnetization at 5 K was 44.2 μB/f.u., suggesting that most of the Ni2+ ions are at the up-spin octahedral sites in the spinel-structure blocks within the model of a Néel-type collinear ferrimagnetic structure. The Curie temperature of the Sr2Ni2X-type hexaferrite was estimated to be TC[Sr2Ni2X] = 472∘C. This is consistent with the difference of the block stacking structures of SrM-type, Sr2Ni2X-type, SrNi2W-type, and nickel spinel ferrites.http://dx.doi.org/10.1063/1.4934792 |
| spellingShingle | K. Kamishima T. Mashiko K. Kakizaki M. Sakai K. Watanabe H. Abe Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite AIP Advances |
| title | Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite |
| title_full | Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite |
| title_fullStr | Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite |
| title_full_unstemmed | Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite |
| title_short | Synthesis and magnetic characterization of Sr-based Ni2X-type hexaferrite |
| title_sort | synthesis and magnetic characterization of sr based ni2x type hexaferrite |
| url | http://dx.doi.org/10.1063/1.4934792 |
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