ICTS:29106

Video URL

Tomonaga-Luttinger liquid and quantum criticality in spin-1/2 antiferromagnetic Heisenberg chain C1…

Tomonaga-Luttinger liquid and quantum criticality in spin-1/2 antiferromagnetic Heisenberg chain C14H18CuN4O10 via Wilson ratio

(2024). Tomonaga-Luttinger liquid and quantum criticality in spin-1/2 antiferromagnetic Heisenberg chain C14H18CuN4O10 via Wilson ratio. SciVideos. https://youtu.be/TaPNcMsF1Xg

Tomonaga-Luttinger liquid and quantum criticality in spin-1/2 antiferromagnetic Heisenberg chain C14H18CuN4O10 via Wilson ratio. SciVideos, Jul. 15, 2024, https://youtu.be/TaPNcMsF1Xg 

          @misc{ scivideos_ICTS:29106,
            doi = {},
            url = {https://youtu.be/TaPNcMsF1Xg},
            author = {},
            keywords = {},
            language = {en},
            title = {Tomonaga-Luttinger liquid and quantum criticality in spin-1/2 antiferromagnetic Heisenberg chain C14H18CuN4O10 via Wilson ratio},
            publisher = {},
            year = {2024},
            month = {jul},
            note = {ICTS:29106 see, \url{https://scivideos.org/icts-tifr/29106}}
          }
Deepshikha Jaiswal Nagar
Talk numberICTS:29106
Source RepositoryICTS-TIFR
Source EventEngineered 2D Quantum Materials
Collection

Abstract

The ground state of a one-dimensional spin-1/2 uniform antiferromagnetic Heisenberg chain (AfHc) is a Tomonaga-Luttinger liquid which is quantum-critical with respect to applied magnetic fields upto a saturation field Hs beyond which it transforms to a fully polarised 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 magnetisation, 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 an excellent realisation of a spin-1/2 AfHc. Wilson ratio obtained from experimentally obtained magnetic susceptibility and magnetic contribution of specific heat values was used to map the magnetic phase diagram of the uniform spin- 1/2 AfHc over large regions of phase space demarcating Tomonaga-Luttinger liquid, saturation field quantum cri...