Low-Temperature Heat Transport in the Low-Dimensional Quantum Magnet NiCl_{2}-4SC(NH_{2})_{2}

Abstract

We report a study of the low-temperature thermal conductivity of NiCl_{2}-4SC(NH_{2})_{2}, which is a spin-1 chain system exhibiting the magnon Bose-Einstein condensation (BEC) in magnetic field. It is found that the low-T thermal conductivity along the spin-chain direction shows strong anomalies at the lower and upper critical fields of the magnon BEC state. In this state, magnons act mainly as phonon scatterers at relatively high temperature, but change their role to heat carriers upon temperature approaching zero. The result demonstrates a large thermal conductivity in the magnon BEC state and points to a direct analog between the magnon BEC and the conventional one.

5 pages, 4 figures; the title changed, one reference added; accepted for publication in Phys. Rev. Lett

References in corpus (14)

• Bose-Einstein Condensation in Magnetic Insulators
• Dimensional reduction at a quantum critical point
• Heat conduction in low-dimensional quantum magnets
• A direct measurement of the Bose-Einstein Condensation universality class in NiCl${}_2$-4SC(NH${}_2$)${}_2$ at ultra-low temperatures
• Diverging thermal expansion of the spin-ladder system (C${}_5$H${}_{12}$N)${}_2$CuBr${}_4$
• Field-dependent thermal transport in the Haldane chain compound NENP
• Character of magnetic excitations in a quasi-one-dimensional antiferromagnet near the quantum critical points: Impact on magneto-acoustic properties
• Spin Dynamics of $NiC{l}_2-4SC(N{H}_2{)}_2$ in the Field-Induced Ordered Phase
• Theory of the field-induced BEC in the frustrated spin-1/2 dimer compound BaCuSi2O6
• Spin thermal conductivity of the Haldane chain compound Y2BaNiO5
• Drastic enhancement of magnon thermal conductivity in the Bose-Einstein condensed state of TlCuCl${}_3$
• Magnetization and Magnetoscrition of van Vleck antiferromagnets with magnetic anisotropy of "easy-plane" type
• Magnetostriction in the Bose-Einstein Condensate quantum magnet NiCl2-4SC(NH2)2
• Doping dependence of phonon and quasiparticle heat transport of pure and Dy-doped Bi_2Sr_2CaCu_2O_{8+δ} single crystals

Cited by in corpus (21)

• Ground state and magnetic phase transitions of orthoferrite DyFeO_3
• Magnetic phase transitions and magnetoelectric coupling of GdFeO_3 single crystals probed by low-temperature heat transport
• Large magnetothermal conductivity of HoMnO_3 single crystals and its relation to the magnetic-field induced transitions of magnetic structure
• Thermal Transport of Fractionalized Antiferromagnetic and Field Induced States in the Kitaev Material Na${}_2$Co${}_2$TeO${}_6$
• Heat transport of quasi-one-dimensional Ising-like antiferromagnet BaCo_2V_2O_8 in the longitudinal and transverse fields
• Paramagnetic ground state with field-induced partial order in Nd_3Ga_5SiO_{14} probed by low-temperature heat transport
• Low-temperature transport properties of intermetallic compound HoAgGe with kagome spin ice state
• Low-temperature heat transport of CuFe${}_{1-x}$Ga${}_x$O${}_2$ ($x=$ 0--0.12) single crystals
• An irreversible magnetic-field dependence of low-temperature heat transport of spin-ice compound Dy_2Ti_2O_7 in a [111] field
• Low-temperature heat transport and magnetic-structure transition of the hexagonal TmMnO_3 single crystals
• Significant Inverse Magnetocaloric Effect induced by Quantum Criticality
• Thermal conductivity of IPA-CuCl_3: Evidences of ballistic magnon transport and limited applicability of the Bose-Einstein condensation model
• Effective S=1/2 description of the S=1 chain with strong easy plane anisotropy
• Antiferromagnet with two coupled antiferromagnetic sublattices in a magnetic field
• Thermal conductivity of pure and Zn-doped LiCu_2O_2 single crystals
• Low-temperature thermal conductivity and magnetic transitions of the kagomé-staircase compound Ni${}_3$V${}_2$O${}_8$
• Magnetism study on a frustration-free spatially anisotropic $S$ = 1 square lattice antiferromagnet Ni[SC(NH${}_2$)${}_2$]${}_6$Br${}_2$
• Low-temperature heat transport of spin-gapped quantum magnets
• Low-temperature heat transport of Nd_{2-x}Ce_{x}CuO_{4} single crystals
• Large magnetic heat transport in a Haldane chain material Ni(C$_3H_{10}N_2)_2NO_2ClO_4
• Low-temperature specific heat and heat transport of Tb${}_2$Ti${}_{2-x}$Zr${}_x$O${}_7$ single crystals