A high-mobility two-dimensional electron gas at the spinel/perovskite interface of gamma-Al2O3/SrTiO3
文献类型：期刊论文
| 作者 | Chen, YZ ; Bovet, N ; Trier, F ; Christensen, DV ; Qu, FM ; Andersen, NH ; Kasama, T ; Zhang, W ; Giraud, R ; Dufouleur, J ; Jespersen, TS ; Sun, JR ; Smith, A ; Nygard, J ; Lu, L ; Buchner, B ; Shen, BG ; Linderoth, S ; Pryds, N |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2013 |
| 卷号 | 4 |
| ISSN号 | 2041-1723 |
| 通讯作者 | Chen, YZ (reprint author), Tech Univ Denmark, Dept Energy Convers & Storage, Riso Campus, DK-4000 Roskilde, Denmark. |
| 中文摘要 | The discovery of two-dimensional electron gases at the heterointerface between two insulating perovskite-type oxides, such as LaAlO3 and SrTiO3, provides opportunities for a new generation of all-oxide electronic devices. Key challenges remain for achieving interfacial electron mobilities much beyond the current value of approximately 1,000 cm(2)V(-1) s(-1) (at low temperatures). Here we create a new type of two-dimensional electron gas at the hetero-interface between SrTiO3 and a spinel gamma-Al2O3 epitaxial film with compatible oxygen ions sublattices. Electron mobilities more than one order of magnitude higher than those of hitherto-investigated perovskite-type interfaces are obtained. The spinel/perovskite two-dimensional electron gas, where the two-dimensional conduction character is revealed by quantum magnetoresistance oscillations, is found to result from interface-stabilized oxygen vacancies confined within a layer of 0.9 nm in proximity to the interface. Our findings pave the way for studies of mesoscopic physics with complex oxides and design of high-mobility all-oxide electronic devices. |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56723]  |
| 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 | Chen, YZ,Bovet, N,Trier, F,et al. A high-mobility two-dimensional electron gas at the spinel/perovskite interface of gamma-Al2O3/SrTiO3[J]. NATURE COMMUNICATIONS,2013,4. |
| APA | Chen, YZ.,Bovet, N.,Trier, F.,Christensen, DV.,Qu, FM.,...&Pryds, N.(2013).A high-mobility two-dimensional electron gas at the spinel/perovskite interface of gamma-Al2O3/SrTiO3.NATURE COMMUNICATIONS,4. |
| MLA | Chen, YZ,et al."A high-mobility two-dimensional electron gas at the spinel/perovskite interface of gamma-Al2O3/SrTiO3".NATURE COMMUNICATIONS 4(2013). |
入库方式： OAI收割
来源：物理研究所
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