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The Fermi surface of underdoped high-T-c superconducting cuprates
Dai, X; Su, ZB; Yu, L; Dai, X , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
1997
发表期刊PHYSICA C
ISSN0921-4534
卷号282期号:1页码:1669-1670
摘要The 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.
部门归属INT CTR THEORET PHYS,I-34100 TRIESTE,ITALY
关键词Normal-state bi2sr2cacu2o8+delta
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12445
专题理论物理所SCI论文
通讯作者Dai, X , ACAD SINICA,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
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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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