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Superconductivity from pseudogap through attraction between spin-vortices
Marchetti, PA; Ye, F; Su, ZB; Yu, L
2010
Conference Name9th International Conference on Materials and Mechanisms of Superconductivity
Source PublicationPHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume470
PagesS968-S969
Conference DateSEP 07-12, 2009
Conference PlaceTokyo, JAPAN
Publication PlaceAMSTERDAM
ISSN0921-4534
PublisherELSEVIER SCIENCE BV
AbstractWithin 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.
DOI10.1016/j.physc.2009.11.136
URL查看原文
Indexed ByCPCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter
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Document Type会议论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23628
CollectionSCI会议论文
Affiliation1.[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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