Superconductivity from pseudogap through attraction between spin-vortices
文献类型：会议论文
| 作者 | Marchetti, PA; Ye, F; Su, ZB ; Yu, L
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| 出版日期 | 2010 |
| 会议日期 | SEP 07-12, 2009 |
| 会议地点 | Tokyo, JAPAN |
| 卷号 | 470 |
| DOI | 10.1016/j.physc.2009.11.136 |
| 页码 | S968-S969 |
| 英文摘要 | Within the framework of the spin-charge gauge approach to the 2D t-J model (Marchetti et al., 2007 [1]) we propose a new non-BCS mechanism for superconductivity in hole-underdoped cuprates. The gluing force is an attraction between spin-vortices centered at the empty sites (described by fermionic holons) in two different Neel sublattices. This attraction induces in turn, through a gauge interaction originated from the no-double occupation constraint, formation of resonance valent bond (RVB) spin pairs (described in terms of bosonic spinons). When holon pairs condense, a finite density of RVB spinon pairs appears. Superconductivity occurs at T = 0 at finite doping concentration, when both the holon-vortex pairs and the RVB spinon pairs are condensed. Its precursor is a normal state region where magnetic vortices proliferate, leading to superconductivity via a 3D-gauged-XY transition. (C) 2009 Elsevier B.V. All rights reserved. |
| 会议录 | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
 |
| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | AMSTERDAM |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISSN号 | 0921-4534 |
| WOS研究方向 | Physics |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23628]  |
| 专题 | SCI会议论文 |
| 作者单位 | 1.[Su, Z. B. 2.[Yu, L.] CAS, Inst Phys, Beijing 100190, Peoples R China 3.[Marchetti, P. A.] Ist Nazl Fis Nucl, Dipartimento Fis, I-35131 Padua, Italy 4.[Ye, F.] Tsinghua Univ, Inst Adv Study, Beijing 100084, Peoples R China 5.Yu, L.] CAS, Inst Theoret Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Marchetti, PA,Ye, F,Su, ZB,et al. Superconductivity from pseudogap through attraction between spin-vortices[C]. 见:. Tokyo, JAPAN. SEP 07-12, 2009. |
入库方式： OAI收割
来源：理论物理研究所
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