Ground-state magnetization of polymerized spin chains

1998/03/31 by D. C. Cabra, Daniel C. Cabra, M. D. Grynberg +1
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum many-body systems #Theoretical and Computational Physics #cond-mat.stat-mech #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.59.119

published as Phys. Rev. B, 59 (1999) 119-122 · 5 pages, 6 figures, final version to appear in Phys.Rev.B

arxiv created 1998/10/13 · openalex publication_date 1999/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We investigate the ground-state magnetization plateaus appearing in spin-1/2 polymerized Heisenberg chains under external magnetic fields. The associated fractional quantization scenario and the exponents which characterize the opening of gapful excitations are analyzed by means of Abelian bosonization methods. Our conclusions are fully supported by the extrapolated results obtained from Lanczos diagonalizations of finite systems.

Citations

• Quantum Inverse Scattering Method and Correlation Functions
• Identification of Nuclear Relaxation Processes in a Gapped Quantum Magnet:1HNMR in theS<mml:mspace/>=<mml:mspace/>12Heisenberg LadderCu2(C5H12N2)2Cl4
• Ground-state magnetization curve of a generalized spin-1/2 ladder
• Non-Abelian bosonization and Haldane’s conjecture
• Two soluble models of an antiferromagnetic chain
• Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma model