Quantum Criticality of an Ising-like Spin-1/2 Antiferromagnetic Chain in Transverse Magnetic Field

Zhe Wang, T. Lorenz, D. I. Gorbunov +11

We report on magnetization, sound velocity, and magnetocaloric-effect measurements of the Ising-like spin-1/2 antiferromagnetic chain system BaCo${}_2$V${}_2$O${}_8$ as a function of tem…