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| Superconductivity from pseudogap through attraction between spin-vortices | |
Marchetti, PA; Ye, F; Su, ZB ; Yu, L
| |
| 2010 | |
| Conference Name | 9th International Conference on Materials and Mechanisms of Superconductivity |
| Source Publication | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS |
| Volume | 470 |
| Pages | S968-S969 |
| Conference Date | SEP 07-12, 2009 |
| Conference Place | Tokyo, JAPAN |
| Publication Place | AMSTERDAM |
| ISSN | 0921-4534 |
| Publisher | ELSEVIER SCIENCE BV |
| Abstract | 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. |
| DOI | 10.1016/j.physc.2009.11.136 |
| URL | 查看原文 |
| Indexed By | CPCI |
| Language | 英语 |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied ; Physics, Condensed Matter |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/23628 |
| Collection | SCI会议论文 |
| Affiliation | 1.[Marchetti, P. A.] Ist Nazl Fis Nucl, Dipartimento Fis, I-35131 Padua, Italy 2.[Ye, F.] Tsinghua Univ, Inst Adv Study, Beijing 100084, Peoples R China 3.[Su, Z. B. 4.Yu, L.] CAS, Inst Theoret Phys, Beijing 100190, Peoples R China 5.[Yu, L.] CAS, Inst Phys, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Marchetti, PA,Ye, F,Su, ZB,et al. Superconductivity from pseudogap through attraction between spin-vortices[C]. AMSTERDAM:ELSEVIER SCIENCE BV,2010:S968-S969. |
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