Structural incommensurate modulation rule in hexagonal Ba(Ti1-xMx)O3-delta (M = Mn, Fe) multiferroics
文献类型：期刊论文
| 作者 | Wei, XK ; Zhang, QH ; Jin, CQ ; Yu, RC |
| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2012 |
| 卷号 | 2期号:4 |
| 关键词 | DOPED BATIO3 ROOM-TEMPERATURE CERAMICS |
| ISSN号 | 2158-3226 |
| 通讯作者 | Yu, RC (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We study the phonon-mediated superconductivity in light doped ABA-stacked trilayer graphene system by means of two theoretical models. We find superconducting transition temperature T-C can be greatly enlarged by tuning the Fermi energy away from neutral point. Utilizing realistic parameters, we find T-c is approximately 1 K even under weak doping condition E-F = 0.1 eV. Specifically, we give out the analytical expression for superconductivity gap Delta and superconducting transition temperature T-c for negative-U Hubbard model. Further, we consider the thermal fluctuation and calculate the Berezinskii-Kosterlitz-Thouless critical temperature T-BKT. Besides, we consider a two-band BCS model in comparision with the negative-U Hubbard model. The results for both models are qualitatively consistent. Our study provides a promising possibility for realizing intrinsic superconductivity in multilayer graphene systems. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4773226] |
| 收录类别 | SCI |
| 资助信息 | State Key Development Program for Basic Research of China [2012CB932302]; National Natural Science Foundation of China [11174336] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53309]  |
| 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 | Wei, XK,Zhang, QH,Jin, CQ,et al. Structural incommensurate modulation rule in hexagonal Ba(Ti1-xMx)O3-delta (M = Mn, Fe) multiferroics[J]. AIP ADVANCES,2012,2(4). |
| APA | Wei, XK,Zhang, QH,Jin, CQ,&Yu, RC.(2012).Structural incommensurate modulation rule in hexagonal Ba(Ti1-xMx)O3-delta (M = Mn, Fe) multiferroics.AIP ADVANCES,2(4). |
| MLA | Wei, XK,et al."Structural incommensurate modulation rule in hexagonal Ba(Ti1-xMx)O3-delta (M = Mn, Fe) multiferroics".AIP ADVANCES 2.4(2012). |
入库方式： OAI收割
来源：物理研究所
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