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Marchetti, PA; Su, ZB; Yu, L; Marchetti, PA , Ist Nazl Fis Nucl, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
U(1)xSU(2) gauge theory of underdoped cuprate superconductors
Source PublicationMODERN PHYSICS LETTERS B
KeywordHigh-tc Superconductors Normal-state Hubbard-model Bosonization Fermions
AbstractThe U(1) x SU(2) Chern-Simons gauge theory is applied to study the 2D t-J model describing the normal state of underdoped cuprate superconductors. The U(1) field produces a flux phase for holons converting them into Dirac-like fermions, while the SU(2) field, due to the coupling to holons gives rise to a gap for spinons. An effective low-energy action involving holons, spinons and a self-generated U(1) gauge field is derived. The Fermi surface and electron spectral function obtained are consistent with photoemission experiments. The theory predicts a minimal gap proportional to doping concentration. It also explains anomalous transport properties.
1998
ISSN0217-9849
Volume12Issue:5Pages:173-180
Subject AreaPhysics
Indexed BySCI
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12349
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMarchetti, PA , Ist Nazl Fis Nucl, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
Recommended Citation
GB/T 7714
Marchetti, PA,Su, ZB,Yu, L,et al. U(1)xSU(2) gauge theory of underdoped cuprate superconductors[J]. MODERN PHYSICS LETTERS B,1998,12(5):173-180.
APA Marchetti, PA,Su, ZB,Yu, L,&Marchetti, PA , Ist Nazl Fis Nucl, Dipartimento Fis G Galilei, I-35131 Padua, Italy..(1998).U(1)xSU(2) gauge theory of underdoped cuprate superconductors.MODERN PHYSICS LETTERS B,12(5),173-180.
MLA Marchetti, PA,et al."U(1)xSU(2) gauge theory of underdoped cuprate superconductors".MODERN PHYSICS LETTERS B 12.5(1998):173-180.
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