no code implementations • 6 Jan 2021 • Andreas Weichselbaum, Weiguo Yin, Alexei M. Tsvelik
We study the antiferromagnetic spin-half Heisenberg ladder in the presence of an additional frustrating rung spin which is motivated and relevant also for the description of real two-dimensional materials such as the two-dimensional trimer magnet Ba$_4$Ir$_3$O$_{10}$.
Strongly Correlated Electrons