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Fermion condensation and boson saturation in cuprates
Chang, Z; Chang, Z , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
1996
发表期刊PHYSICS LETTERS A
ISSN0375-9601
卷号222期号:5页码:333-337
摘要Using the slave-boson approach, we show that the boundary terms of the t-J model change the symmetry of the system from an ordinary Lie group into a quantum group. The novel property of fermion condensation and boson saturation is demonstrated below the critical concentration point of doping using quantum symmetry. After taking into account the novel phenomena, we obtain an antiferromagnetic correlation and small Fermi pockets centered around (+/-1/2 pi, +/-1/2 pi) at low doping which evolve into a large Fermi surface at high doping concentrations.
部门归属ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA; ACAD SINICA,INST THEORET PHYS,BEIJING 100039,PEOPLES R CHINA
关键词Valence-bond State Quantum Antiferromagnet Square-lattice Single Hole Superconductors Models Excitations Oscillator Symmetry Motion
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/311006/12560
专题理论物理所SCI论文
通讯作者Chang, Z , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.
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Chang, Z,Chang, Z , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA.. Fermion condensation and boson saturation in cuprates[J]. PHYSICS LETTERS A,1996,222(5):333-337.
APA Chang, Z,&Chang, Z , CCAST,WORLD LAB,POB 8730,BEIJING 100080,PEOPLES R CHINA..(1996).Fermion condensation and boson saturation in cuprates.PHYSICS LETTERS A,222(5),333-337.
MLA Chang, Z,et al."Fermion condensation and boson saturation in cuprates".PHYSICS LETTERS A 222.5(1996):333-337.
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