Preparation of a heteroepitaxial LaxSryMnzO3/BiFeO3 bilayer by r.f. magnetron sputtering with various oxygen gas flow ratios
文献类型：期刊论文
| 作者 | Naganuma, H ; Ichinose, T ; Begum, HA ; Sato, S ; Han, XF ; Miyazaki, T ; Bae, IT ; Oogane, M ; Ando, Y |
| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:8 |
| ISSN号 | 2158-3226 |
| 通讯作者 | Naganuma, H (reprint author), Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Sendai, Miyagi 9808579, Japan. |
| 中文摘要 | BiFeO3 (BFO) and La(x)Sr(y)MnzO(3) (LSMO) films were epitaxially grown on SrTiO3 (100) substrates by r.f. magnetron sputtering with various oxygen gas flow ratios (F-O2). Compositional ratios of each atom in both of BFO and LSMO could be controlled kept to around 10 at.% by changing F-O2. Adjusting the compositional ratio to La0.35Sr0.15Mn0.5O3 not only increase T-c of LSMO but also produces sufficient oxygen to form a perovskite lattice. For an LSMO/BFO heterostructure, detailed observation by cross sectional transmission electron microscopy (TEM) revealed that the lattice of rhombohedral (SG: R-3c) LSMO was shrank by a clamping effect from the SrTiO3 substrates, and then the BFO was grown in two layers: (i) an interfacial BFO layer (7 nm thick) with evenly shrunk a-axis and c-axis, and (ii) an upper BFO layer (25 nm thick) expanded along the c-axis. Neither misfit strain nor dislocations appeared at the interface between the shrunken BFO and LSMO layers, and these heterostructures did not show exchange bias. These results suggest that BFO is suitable for a tunneling barrier combine with LSMO electrode. (C) 2014 Author(s). |
| 资助信息 | KAKENHI [25600067]; strategic international cooperative program (Joint Research Type); Japan Science and Technology Agency "Advanced Spintronic Materials and Transport Phenomena (ASPIMATT)"; NSFC-JSPS international Joint Research Fund; Tanaka Holdings Co., Ltd. New York State Office of Science, Technology, and Innovation; Empire State Development Corporation; [24226001] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/58849]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Naganuma, H,Ichinose, T,Begum, HA,et al. Preparation of a heteroepitaxial LaxSryMnzO3/BiFeO3 bilayer by r.f. magnetron sputtering with various oxygen gas flow ratios[J]. AIP ADVANCES,2014,4(8). |
| APA | Naganuma, H.,Ichinose, T.,Begum, HA.,Sato, S.,Han, XF.,...&Ando, Y.(2014).Preparation of a heteroepitaxial LaxSryMnzO3/BiFeO3 bilayer by r.f. magnetron sputtering with various oxygen gas flow ratios.AIP ADVANCES,4(8). |
| MLA | Naganuma, H,et al."Preparation of a heteroepitaxial LaxSryMnzO3/BiFeO3 bilayer by r.f. magnetron sputtering with various oxygen gas flow ratios".AIP ADVANCES 4.8(2014). |
入库方式： OAI收割
来源：物理研究所
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