Browsing by Subject "Triplon gas"

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    Characteristic temperatures of a triplon system of dimerized quantum magnets
    (World Scientific Publishing Co. Pte. Ltd., 2021) Rakhimov, Abdulla; Nishonov, M.; Rani, Luxmi; Tanatar, Bilal
    Exploiting the analogy between ultracold atomic gases and the system of triplons, we study magneto-thermodynamic properties of dimerized quantum magnets in the framework of Bose–Einstein condensation (BEC). Particularly, introducing the inversion (or Joule–Thomson) temperature TJT as the point where Joule–Thomson coefficient of an isenthalpic process changes its sign, we show that for a simple paramagnet, this temperature is infinite, while for three-dimensional (3D) dimerized quantum magnets it is finite and always larger than the critical temperature Tc of BEC. Below the inversion temperature T