Interplay between spin frustration and magnetism in the exactly solved two-leg mixed spin ladder

Qi Yan^{1, †,}, Lv Song-Wei¹, Du An², Yu Nai-sen^{1, ‡,}

Temperature dependence of (a) zero-field magnetic susceptibility and (b) zero-field specific heat under J_‖,1 = j_‖,2 = 1.0 for j_⊥ varying from 0.2 to 3.2.