Frustration-induced quantum phases in mixed spin chain with frustrated side chains

2008/05/31 by Kazuo Hida, K. Takano, Ken'ichi Takano
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Quantum many-body systems #cond-mat.stat-mech #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.78.064407

published as Phys. Rev. B 78, 064407 (2008) · 10 pages, 18 figures

openalex publication_date 2008/08/11 · arxiv created 2008/08/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A mixed Heisenberg spin chain with frustrated side chains is investigated by numerical and perturbational calculations. A frustration-induced quantum partially polarized ferrimagnetic phase and a nonmagnetic spin quadrupolar phase are found adjacent to the conventional Lieb-Mattis-type ferrimagnetic phase or the nonmagnetic singlet cluster solid phases. The partially polarized ferrimagnetic phase has an incommensurate spin structure. Similar structures are commonly found in other frustration-induced partially polarized ferrimagnetic phases. Numerical results also suggest a series of almost critical nonmagnetic ground states in a highly frustrated regime if the side chain spins weakly couple to the main chain.

Citations

• Magnetic properties ofRb2Cu2Mo3O12including a one-dimensional spin-1∕2Heisenberg system with ferromagnetic first-nearest-neighbor and antiferromagnetic second-nearest-neighbor exchange interactions
• Quantum vs Classical Magnetization Plateaus of S=1/2 Frustrated Heisenberg Chains
• Disordered ground states in a quantum frustrated spin chain with side chains
• NonlinearσModel for Inhomogeneous Spin Chains
• Exotic Ground State Phases of S=1/2 Heisenberg Δ-Chain with Ferromagnetic Main Chain