Ground state of an antiferromagnetic Heisenberg spin system on a nontranslational lattice of dimension between one and two
Piotr Tomczak, A. Ryszard Ferchmin, Johannes Richter
The ground-state properties of the antiferromagnetic, nearest-neighbor, frustrated Heisenberg spin-1/2 system on a nontranslational lattice of dimension d=ln3/ln2 are investigated. The argument is presented indicating that quantum fluctuations, frustration, lack of translational symmetry, and reduction of dimension of the system from d=2, but kept above d=1, taken together lead to a disordered ground state in quantum antiferromagnets. \textcopyright{} 1996 The American Physical Society.
Physical review. B, Condensed matter•Jul 1, 1996•14 citations