ITP OpenIR  > 理论物理所科研产出  > SCI期刊论文
Lou, JZ; Dai, X; Qin, SJ; Su, ZB; Yu, L; Lou, JZ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Heisenberg spin-1 chain in a staggered magnetic field: A density-matrix-renormalization-group study
Source PublicationPHYSICAL REVIEW B
KeywordHaldane-gap Excitations Transition-metal Oxide Antiferromagnet Nd2banio5 Y2banio5 (Ndxy1-x)(2)Banio5 Scattering Dynamics Order
AbstractUsing the density-matrix-renormalization-group technique, we calculate numerically the low-energy excitation spectrum and magnetization curve of the spin-1 antiferromagnetic chain in a staggered magnetic field, which is expected to describe the physics of the R2BaNiO5 (R not equal Y) family below the Neel temperature of the magnetic rare-earth (Rf sublattice. These results are valid in the entire range of the staggered field, and agree with those given by the nonlinear sigma model study for small fields, but differ from the latter for large fields. They are consistent with the available experimental data. The correlation functions for this model are also calculated. The transverse correlations display the anticipated exponential decay with-shorter correlation length, while the: longitudinal correlations show explicitly the induced staggered magnetization. [S0163-1829(99)04021-7].
1999
ISSN0163-1829
Volume60Issue:1Pages:52-55
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13124
Collection理论物理所科研产出_SCI期刊论文
Corresponding AuthorLou, JZ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Lou, JZ,Dai, X,Qin, SJ,et al. Heisenberg spin-1 chain in a staggered magnetic field: A density-matrix-renormalization-group study[J]. PHYSICAL REVIEW B,1999,60(1):52-55.
APA Lou, JZ,Dai, X,Qin, SJ,Su, ZB,Yu, L,&Lou, JZ , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1999).Heisenberg spin-1 chain in a staggered magnetic field: A density-matrix-renormalization-group study.PHYSICAL REVIEW B,60(1),52-55.
MLA Lou, JZ,et al."Heisenberg spin-1 chain in a staggered magnetic field: A density-matrix-renormalization-group study".PHYSICAL REVIEW B 60.1(1999):52-55.
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