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Dai, X; Su, ZB; Yu, L; Dai, X , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
The Fermi surface of underdoped high-T-c superconducting cuprates
Source PublicationPHYSICA C
KeywordNormal-state bi2sr2cacu2o8+delta
AbstractThe coexistence of pi-flux state and d-wave RVB state is considered in this paper within the slave boson approach. A critical value of doping concentration delta(c) is found, below which the coexisting pi-flux and d-wave RVB state is favoured in energy. The pseudo Fermi surface of spinons and the physical electron spectral function are calculated. A clear Fermi-level crossing is found along the (0,0) to (pi, pi) direction, but no such crossing is detected along the (pi, 0) to (pi, pi) direction. Also, an energy gap of d-wave symmetry appears at the Fermi level in our calculation. The above results are in agreement with the angle-resolved photoemission experiments which indicate at a d-wave pseudogap and a half-pocket-like Fermi surface in underdoped cuprates.
1997
ISSN0921-4534
Volume282Issue:1Pages:1669-1670
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12445
Collection理论物理所科研产出_SCI论文
Corresponding AuthorDai, X , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
Dai, X,Su, ZB,Yu, L,et al. The Fermi surface of underdoped high-T-c superconducting cuprates[J]. PHYSICA C,1997,282(1):1669-1670.
APA Dai, X,Su, ZB,Yu, L,&Dai, X , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA..(1997).The Fermi surface of underdoped high-T-c superconducting cuprates.PHYSICA C,282(1),1669-1670.
MLA Dai, X,et al."The Fermi surface of underdoped high-T-c superconducting cuprates".PHYSICA C 282.1(1997):1669-1670.
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