Low temperature ESR in spin ladder (C₇H₁₀N)₂Cu_(1−x)Zn _x Br₄

Approaching the isotropic spin-ladder regime: structure and magnetism of all-pyrazine-bridged copper(ii)-based antiferromagnetic ladders

“…Here, the rail interaction is propagated via the diazine linkage and the rung interaction via a bridging bihalide pathway. Copper(II) halide (CuX 4 2− ) based ladders in both the strong rung (BPCB) 7,8,17 and strong rail (DIMPY) 18,19 limit have been characterized previously in terms of exchange anisotropy and Luttinger liquid models on the ladder based lattice. 9 (5NAPH) 2 CuBr 4 •H 2 O is a nearly isotropic spin ladder with J rung /J rail = 1.04 ( J rung = −10.2 K and J rail = −9.8 K) where both the rung and rail bridges are two-halide pathways.…”