Hong T, Kim YH, Hotta C, Takano Y, Tremelling G, Turnbull MM, Landee CP, Kang HJ, Christensen NB, Lefmann K, Schmidt KP, Uhrig GS, Broholm C (2010)
Publication Status: Published
Publication Type: Journal article
Publication year: 2010
Publisher: AMER PHYSICAL SOC
Book Volume: 105
Journal Issue: 13
DOI: 10.1103/PhysRevLett.105.137207
We study the magnetic-field-induced quantum phase transition from a gapped quantum phase that has no magnetic long-range order into a gapless phase in the spin-1/2 ladder compound bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). At temperatures below about 1 K, the specific heat in the gapless phase attains an asymptotic linear temperature dependence, characteristic of a Tomonaga-Luttinger liquid. Inelastic neutron scattering and the specific heat measurements in both phases are in good agreement with theoretical calculations, demonstrating that DIMPY is the first model material for an S = 1/2 two-leg spin ladder in the strong-leg regime.
APA:
Hong, T., Kim, Y.H., Hotta, C., Takano, Y., Tremelling, G., Turnbull, M.M.,... Broholm, C. (2010). Field-Induced Tomonaga-Luttinger Liquid Phase of a Two-Leg Spin-1/2 Ladder with Strong Leg Interactions. Physical Review Letters, 105(13). https://doi.org/10.1103/PhysRevLett.105.137207
MLA:
Hong, Tao, et al. "Field-Induced Tomonaga-Luttinger Liquid Phase of a Two-Leg Spin-1/2 Ladder with Strong Leg Interactions." Physical Review Letters 105.13 (2010).
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