High-Field Heat Capacity of Atacamite Cu${}_2$Cl(OH)${}_3$ for $\mathbf{H}\parallel b$ axis: From Antiferromagnetic Order to Correlated Disorder

L. Stödter, A. Demuer, T. Kotte +4

We present the heat capacity of the frustrated sawtooth-chain compound atacamite Cu${}_2$Cl(OH)${}_3$ in high magnetic fields up to 35 T for $\mathbf{H}\parallel b$ axis. We clearly o…