2011/05/31 by C. A. Lamas, Sylvain Capponi, S. Capponi +2 · 1 citation
Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Bosonization #Condensed matter physics #Density matrix renormalization group #Doping #Fermion #Magnetic field #Magnetization #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Spins #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.84.115125
published as Phys. Rev. B 84, 115125 (2011) · 12 pages, 5 figures
arxiv created 2011/09/21 · openalex publication_date 2011/09/21 · arxiv updated 2011/09/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the magnetic properties of quasi-one-dimensional quantum spin-S antiferromagnets. We use a combination of analytical and numerical techniques to study the presence of plateaux in the magnetization curve. The analytical technique consists in a path integral formulation in terms of coherent states. This technique can be extended to the presence of doping and has the advantage of a much better control for large spins than the usual bosonization technique. We discuss the appearance of doping-dependent plateaux in the magnetization curves for spin-S chains and ladders. The analytical results are complemented by a density matrix renormalization group (DMRG) study for a trimerized spin-1/2 and anisotropic spin-3/2 doped chains.