Magnetic Properties of Quantum Ferrimagnetic Spin Chains
arXiv:cond-mat/9810112 · doi:10.1103/PhysRevB.59.1024
Abstract
Magnetic susceptibilities of spin-$(S,s)$ ferrimagnetic Heisenberg chains are numerically investigated. It is argued how the ferromagnetic and antiferromagnetic features of quantum ferrimagnets are exhibited as functions of $(S,s)$. Spin-$(S,s)$ ferrimagnetic chains behave like combinations of spin-$(S-s)$ ferromagnetic and spin-$(2s)$ antiferromagnetic chains provided $S=2s$.
4 pages, 7 PS figures, to appear in Phys. Rev. B: Rapid Commun