Quasi-one-dimensional spin-1/2 Heisenberg magnets in their ordered phase: Correlation functions

Article

关键词: QUANTUM-FIELD-THEORY;    PEIERLS TRANSITION;    NEUTRON-SCATTERING;    COMPOUND CUGEO3;    FORM-FACTORS;    CHAINS;    DIMERIZATION;    SPECTRUM;    STATE;    MODEL;   

DOI  :  10.1103/PhysRevB.56.11001

来源: SCIE

【 摘 要 】

We study weakly coupled antiferromagnetic spin chains in their ordered phase by combining an exact solution of the single-chain problem with a random-phase-approximation analysis of the interchain interaction. A single chain is described by a quantum Sine-Gordon model and dynamical staggered susceptibilities are determined by employing the form-factor approach to quantum correlation functions. We consider both antiferromagnetic order encountered in quasi-one-dimensional materials such as KCuF3 and spin-Peierls order as found in CuGeO3. [S0163-1829(97)00941-7].

【 授权许可】

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