Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties
For achieving tunable saturation magnetization and line width, different cations were doped into the YIG-based garnets, which the standard molecular formula could be expressed as A _3 [Fe _2−x M _x ](Fe _3−y N _y )O _12 . Most researchers have reported a single rule of one element doping (x or y) on...
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| Format: | Article |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abdc54 |
| _version_ | 1797746770450579456 |
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| author | Fan Jiang Jianghe Lan Zhantao Wei Bin You Jun Li Yang Li Deli Shi Zhengwei Xiong Pingchuan Zhang Jinsong Chen |
| author_facet | Fan Jiang Jianghe Lan Zhantao Wei Bin You Jun Li Yang Li Deli Shi Zhengwei Xiong Pingchuan Zhang Jinsong Chen |
| author_sort | Fan Jiang |
| collection | DOAJ |
| description | For achieving tunable saturation magnetization and line width, different cations were doped into the YIG-based garnets, which the standard molecular formula could be expressed as A _3 [Fe _2−x M _x ](Fe _3−y N _y )O _12 . Most researchers have reported a single rule of one element doping (x or y) on its magnetic properties. However, the cooperation effect of x + y to the magnetic contribution was not clearly clarified. In this work, multi-doped bismuth-iron garnets {Bi _0.84 Ca _2.16 }[Fe _2−x In _x ](Fe _3−y V _y )O _12 (x = 0.72–0.14 and y = 1.24–1.38) with low saturation magnetizations (4 πM _s = 200–600 Gs at 298 K) were prepared by a conventional fluxing agent method. The cooperation effect of In ^3+ and V ^5+ co-doped into bismuth-iron garnets (BIG) on their structures and magnetic properties were systematically investigated using XPS, TEM and VSM. It could be found that the total doped concentration (x + y) was decreasing regardless of the increasing V concentration (y) and decreasing In concentration (x). As-synthesized BIG presented a well single-crystal structure, and the lattice spacing was decreasing with the decrease of x + y in accompanying with the transition of dislocations from point defects to edge dislocations. Both linear increase of Curie temperature and 4 πM _s with the decrease of x + y was revealed. The mechanism could be attributed that the doped non-magnetic ions could reduce the average nearest-neighbor coordination irons for oxygen ions and weaken the anti-ferromagnetic super-exchange interactions among the magnetic ions within the structure, namely dilution effect. By comparison, the total concentraions were higher than that of previous works, which the tailorable 4 πM _s of ferrite was not reported. Here we revealed the controllable 4 πM _s with higher total concentrations (x + y ≥ 1.52). These findings will be provided more opportunities for applications in microwave devices. |
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| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:42:31Z |
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| spelling | doaj.art-d8d31d551cc94fd980886fdc23bf576f2023-08-09T15:56:21ZengIOP PublishingMaterials Research Express2053-15912021-01-018101610410.1088/2053-1591/abdc54Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic propertiesFan Jiang0Jianghe Lan1Zhantao Wei2Bin You3Jun Li4Yang Li5Deli Shi6Zhengwei Xiong7https://orcid.org/0000-0003-3924-4224Pingchuan Zhang8Jinsong Chen9Southwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaJoint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of ChinaJoint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology , Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaSouthwest Institute of Applied Magnetism, Mianyang 621010, People’s Republic of ChinaFor achieving tunable saturation magnetization and line width, different cations were doped into the YIG-based garnets, which the standard molecular formula could be expressed as A _3 [Fe _2−x M _x ](Fe _3−y N _y )O _12 . Most researchers have reported a single rule of one element doping (x or y) on its magnetic properties. However, the cooperation effect of x + y to the magnetic contribution was not clearly clarified. In this work, multi-doped bismuth-iron garnets {Bi _0.84 Ca _2.16 }[Fe _2−x In _x ](Fe _3−y V _y )O _12 (x = 0.72–0.14 and y = 1.24–1.38) with low saturation magnetizations (4 πM _s = 200–600 Gs at 298 K) were prepared by a conventional fluxing agent method. The cooperation effect of In ^3+ and V ^5+ co-doped into bismuth-iron garnets (BIG) on their structures and magnetic properties were systematically investigated using XPS, TEM and VSM. It could be found that the total doped concentration (x + y) was decreasing regardless of the increasing V concentration (y) and decreasing In concentration (x). As-synthesized BIG presented a well single-crystal structure, and the lattice spacing was decreasing with the decrease of x + y in accompanying with the transition of dislocations from point defects to edge dislocations. Both linear increase of Curie temperature and 4 πM _s with the decrease of x + y was revealed. The mechanism could be attributed that the doped non-magnetic ions could reduce the average nearest-neighbor coordination irons for oxygen ions and weaken the anti-ferromagnetic super-exchange interactions among the magnetic ions within the structure, namely dilution effect. By comparison, the total concentraions were higher than that of previous works, which the tailorable 4 πM _s of ferrite was not reported. Here we revealed the controllable 4 πM _s with higher total concentrations (x + y ≥ 1.52). These findings will be provided more opportunities for applications in microwave devices.https://doi.org/10.1088/2053-1591/abdc54saturation magnetizationgarnetsdopingCurie temperature |
| spellingShingle | Fan Jiang Jianghe Lan Zhantao Wei Bin You Jun Li Yang Li Deli Shi Zhengwei Xiong Pingchuan Zhang Jinsong Chen Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties Materials Research Express saturation magnetization garnets doping Curie temperature |
| title | Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties |
| title_full | Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties |
| title_fullStr | Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties |
| title_full_unstemmed | Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties |
| title_short | Cooperation effect of indium and vanadium co-doped into bismuth-iron garnets on magnetic properties |
| title_sort | cooperation effect of indium and vanadium co doped into bismuth iron garnets on magnetic properties |
| topic | saturation magnetization garnets doping Curie temperature |
| url | https://doi.org/10.1088/2053-1591/abdc54 |
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