典型文献
Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films
文献摘要：
Revealing the magnetic coupling nature of boundary defects is crucial for in-depth understanding of the behavior and properties of magnetic materials and devices.Here,magnetite(i.e.,Fe3O4)thin films were grown epitaxially on(100)SrTiO3 single-crystal substrates by pulsed laser deposition.Atomic-scale scan-ning transmission electron microscopy characterizations reveal that three types of antiphase boundaries(APBs)are formed in the Fe3O4 thin film.They are the(100)APB that is formed on the(100)plane with a crystal translation of(1/4)a[011],the type Ⅰ and type Ⅱ(110)APBs that are both formed on the(110)plane with the same crystal translation of(1/4)a[101]but different terminated atomic planes.The type Ⅰ(110)APB is terminated at the atomic plane with mixed tetrahedral-and octahedral-sites Fe atoms,the type Ⅱ(110)APB is terminated at the octahedral-site Fe plane.First-principles calculations reveal that the(100)APB and the type Ⅰ(110)APB tend to form the ferromagnetic coupling that will not decrease the spin polarization of Fe3O4 films,while the type Ⅱ(110)APB prefers to form the antiferromagnetic coupling that will degrade the magnetic properties.The magnetic coupling modes of the APBs are closely related to the Fe-O-Fe bond angles across the boundaries.
文献关键词：
中图分类号：
作者姓名：
Chunyang Gao;Yixiao Jiang;Tingting Yao;Ang Tao;Xuexi Yan;Xiang Li;Chunlin Chen;Xiu-Liang Ma;Hengqiang Ye
作者机构：
Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China;Ji Hua Laboratory,Foshan 528200,China
文献出处：
引用格式：
[1]Chunyang Gao;Yixiao Jiang;Tingting Yao;Ang Tao;Xuexi Yan;Xiang Li;Chunlin Chen;Xiu-Liang Ma;Hengqiang Ye-.Atomic origin of magnetic coupling of antiphase boundaries in magnetite thin films)[J].材料科学技术（英文版）,2022(12):92-99
A类：
antiphase,APBs
B类：
Atomic,origin,coupling,boundaries,magnetite,thin,films,Revealing,nature,boundary,defects,crucial,depth,understanding,behavior,properties,materials,devices,Here,Fe3O4,were,grown,epitaxially,SrTiO3,single,crystal,substrates,by,pulsed,laser,deposition,scale,scan,ning,transmission,electron,microscopy,characterizations,reveal,that,three,types,are,formed,They,translation,both,same,but,different,terminated,atomic,planes,mixed,tetrahedral,octahedral,sites,atoms,First,principles,calculations,tend,will,not,decrease,spin,polarization,while,prefers,antiferromagnetic,degrade,modes,closely,related,bond,angles,across
AB值：
0.445524
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