Tomonaga-Luttinger liquid and quantum criticality in spin- 12 antiferromagnetic Heisenberg chain C ₁₄ H ₁₈ CuN ₄ O ₁₀ via Wilson ratio.

ABSTRACT: The ground state of a one-dimensional spin- 12 uniform antiferromagnetic Heisenberg chain (AfHc) is a Tomonaga-Luttinger liquid which is quantum-critical with respect to applied magnetic fields up to a saturation field μ0Hs beyond which it transforms to a fully polarized state. Wilson ratio has been predicted to be a good indicator for demarcating these phases [Phys. Rev. B 96, 220401 (2017)]. From detailed temperature and magnetic field-dependent magnetization, magnetic susceptibility and specific heat measurements in a metalorganic complex and comparisons with field theory and quantum transfer matrix method calculations, the complex was found to be a very good realization of a spin- 12 AfHc. Wilson ratio obtained from experimentally obtained magnetic susceptibility and magnetic contribut

SUBMITTER: Channarayappa SK 

PROVIDER: S-EPMC11391949 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature