ITP OpenIR  > 理论物理所SCI论文
FLUX PHASE AND DOPING DEPENDENCE OF ANTIFERROMAGNETISM IN COPPER-OXIDE COMPOUNDS
FENG, SP
1994
发表期刊PHYSICA C
ISSN0921-4534
卷号232期号:40910页码:119-126
摘要The ground-state properties of copper oxide compounds are studied by using the fermion-spin transformation. At half-filling, there are many possible phases for the 2D Heisenberg model and the mean-field state with the lowest energy is the magnetized pi-flux state. It is shown that the mean-field ground state of the 2D XY model is a uniform pi-flux phase with no staggered antiferromagnetic long-range order, and a reasonable result is also obtained for the 2D anisotropic Heisenberg model. In the mean-field level, the quantum fluctuation and frustration of spins can be considered by introducing the next-nearest-neighbor magnetic exchange interaction J', the antiferromagnetic long-range order is destroyed at half-fitting within the J-J' model where the value of J' is larger than the critical value J'(c) = 0.24J. Away from half-filling, the antiferromagnetic long-range order is destroyed for a hole concentration less than approximately 4.3%-7% for reasonable values of the parameters J'/J = 0.05 and t/J = 3-5 within the t-J-J' model, which is in good agreement with the experiments on copper oxide superconductors.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Valence-bond State Mean-field-theory T-j-model Spin-liquid State Heisenberg-model Hubbard-model Doped Antiferromagnet Momentum Distribution Square Lattice Wave-functions
学科领域Physics
URL查看原文
收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/11844
专题理论物理所SCI论文
推荐引用方式
GB/T 7714
FENG, SP. FLUX PHASE AND DOPING DEPENDENCE OF ANTIFERROMAGNETISM IN COPPER-OXIDE COMPOUNDS[J]. PHYSICA C,1994,232(40910):119-126.
APA FENG, SP.(1994).FLUX PHASE AND DOPING DEPENDENCE OF ANTIFERROMAGNETISM IN COPPER-OXIDE COMPOUNDS.PHYSICA C,232(40910),119-126.
MLA FENG, SP."FLUX PHASE AND DOPING DEPENDENCE OF ANTIFERROMAGNETISM IN COPPER-OXIDE COMPOUNDS".PHYSICA C 232.40910(1994):119-126.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
FLUX PHASE AND DOPIN(4381KB) 开放获取使用许可请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[FENG, SP]的文章
百度学术
百度学术中相似的文章
[FENG, SP]的文章
必应学术
必应学术中相似的文章
[FENG, SP]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。