Antiferromagnetic systems with spin gap: exact results
Abstract
Description
We describe some antiferromagnetic systems which exhibit spin gaps. We also discuss the effect of doping one such system, namely, the spin-ladders, with holes. Some model antiferromagnetic systems with spin gap are reviewed for which exact results are available. Exact results for a doped spin-ladder model are also mentioned.
17 pages, LaTeX, 2 postscript figures, To be published in Proceedings of Conference on 70 Years of Quantum Mechanics and Recent Trends in Theoretical Physics, ed. by P. Bandyopadhyay, ISI, Calcutta, (1997)
17 pages, LaTeX, 2 postscript figures, To be published in Proceedings of Conference on 70 Years of Quantum Mechanics and Recent Trends in Theoretical Physics, ed. by P. Bandyopadhyay, ISI, Calcutta, (1997)