Antiferromagnetic systems with spin gap: exact results

TL;DR

This paper reviews antiferromagnetic systems with spin gaps, including exact results for certain models and the effects of doping, particularly in spin-ladders, highlighting their theoretical significance.

Contribution

It provides a comprehensive review of exact solutions in antiferromagnetic systems with spin gaps and discusses the impact of doping on spin-ladders.

Findings

Exact results for specific antiferromagnetic models with spin gaps

Doping effects on spin-ladder systems analyzed

Theoretical insights into spin gap phenomena

Abstract

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.