Ferrimagnetism in a one-dimensional Heisenberg model

Abstract

In this paper, we show that for a one-dimensional antiferromagnetic Heisenberg model with unequal spins, its absolute ground state has both antiferromagnetic and ferromagnetic long-range orders.Received 24 October 1996DOI:https://doi.org/10.1103/PhysRevB.56.5355©1997 American Physical Society