Quantum Criticality of an Ising-like Spin-1/2 Antiferromagnetic Chain in a Transverse Magnetic Field.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.120.207205
Abstract: 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 temperature down to 1.3 K and an applied transverse magnetic field up to 60 T. While across… read more here.
Keywords: like spin; field; ising like; spin antiferromagnetic ... See more keywords
Asymptotic Freedom and Large Spin Antiferromagnetic Chains.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.037202
Abstract: Building on the mapping of large-S spin chains onto the O(3) nonlinear σ model with coupling constant 2/S, and on general properties of that model (asymptotic freedom, implying that perturbation theory is valid at high… read more here.
Keywords: large spin; asymptotic freedom; spin; spin antiferromagnetic ... See more keywords