Low-temperature thermal conductivity of Dy_2Ti_2O_7 and Yb_2Ti_2O_7 single crystals

Abstract

We study the low-temperature thermal conductivity (κ) of Dy_2Ti_2O_7 and Yb_2Ti_2O_7 single crystals in magnetic fields up to 14 T along the [111], [100] and [110] directions. The main experimental findings for Dy_2Ti_2O_7 are: (i) the low-T κ(H) isotherms exhibit not only the step-like decreases at the low-field (< 2 T) magnetic transitions but also obvious field dependencies in high fields (> 7 T); (ii) at T \le 0.5 K, the κ(H) curves show anisotropic irreversibility in low fields, that is, the κ(H) hysteresis locates at the first-order transition with H \parallel [100] and [110], while it locates between two successive transitions with H \parallel [111]; (iii) the κin the hysteresis loops for H \parallel [100] and [110] show an extremely slow relaxation with the time constant of \sim 1000 min. The main experimental findings for Yb_2Ti_2O_7 are: (i) the zero-field κ(T) show a kink-like decrease at the first-order transition (\sim 200 mK) with decreasing temperature; (ii) the low-T κ(H) isotherms show a decrease in low field and a large enhancement in high fields; (iii) the low-T κ(H) curves show a sharp minimum at 0.5 T for H \parallel [110] and [111]. The roles of monopole excitations, field-induced transitions, spin fluctuations and magnetoelastic coupling are discussed.

arXiv comment15 pages, 11 figures, accepted for publication in Phys. Rev. B

References in corpus (62)

• Spin Ice State in Frustrated Magnetic Pyrochlore Materials
• Magnetic Monopoles in Spin Ice
• Magnetic Pyrochlore Oxides
• Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7
• Quantum Spin Ice: A Search for Gapless Quantum Spin Liquids in Pyrochlore Magnets
• Dipolar Interactions and Origin of Spin Ice in Ising Pyrochlore Magnets
• Quantum Excitations in Quantum Spin Ice
• Signature of magnetic monopole and Dirac string dynamics in spin ice
• Coulombic Quantum Liquids in Spin-1/2 Pyrochlores
• Long Range Order at Low Temperature in Dipolar Spin Ice
• Low Temperature Spin Freezing in Dy2Ti2O7 Spin Ice
• Universal Heat Conduction in YBa_2Cu_3O_6.9
• Magnetic anisotropy of the spin ice compound Dy2Ti2O7
• Thermodynamic Properties of the Dipolar Spin Ice Model
• Higgs transition from a magnetic Coulomb liquid to a ferromagnet in Yb_2Ti_2O_7
• First Order Transition in the Spin Dynamics of Geometrically Frustrated Yb2Ti2O7
• Observation of Magnetic Monopoles in Spin Ice
• Heat conduction in low-dimensional quantum magnets
• Thermal conductivity via magnetic excitations in spin-chain materials
• Specific Heat of Kagome Ice in the Pyrochlore Oxide Dy2Ti2O7
• Is the Yb2Ti2O7 pyrochlore a quantum spin ice?
• Two Dimensional Kagome Correlations and Field Induced Order in the Ferromagnetic XY Pyrochlore Yb2Ti2O7
• Magnetic Monopole Dynamics in Spin Ice
• Magnetoelastic excitations in the pyrochlore spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Kagomé ice state in the dipolar spin ice Dy_{2}Ti_{2}O_{7}
• Debye-Hückel theory for spin ice at low temperature
• Thermal quenches in spin ice
• Magnetic phase transitions and magnetoelectric coupling of GdFeO_3 single crystals probed by low-temperature heat transport
• Magnetothermal transport in the spin-1/2 chains of copper pyrazine dinitrate
• Spin Dynamics at Very Low Temperature in Spin Ice Dy${}_2$Ti${}_2$O${}_7$
• Neutron scattering studies of the spin ices Ho2Ti2O7 and Dy2Ti2O7 in applied magnetic field
• Brownian Motion and Quantum Dynamics of Magnetic Monopoles in Spin Ice
• Dimensional Evolution of Spin Correlations in the Magnetic Pyrochlore Yb2Ti2O7
• Metal-to-Insulator Crossover in YBa_{2}Cu_{3}O_{y} Probed by Low-Temperature Quasiparticle Heat Transport
• Unconventional Magnetic Ground State in Yb${}_2$Ti${}_2$O${}_7$
• Unconventional magnetization processes and thermal runaway in spin-ice Dy${}_2$Ti${}_2$O${}_7$
• Single crystal growth of the pyrochlores $R_2$Ti${}_2$O${}_7$ ($R$ = rare earth) by the optical floating-zone method
• Low Energy Electrodynamics of Novel Spin Excitations in the Quantum Spin Ice Yb${}_2$Ti${}_2$O${}_7$
• Magnetically originated phonon-glass-like behavior in Tb_2Ti_2O_7 single crystal
• Far from equilibrium monopole dynamics in spin ice
• Magnetic-Field-Induced Localization of Quasiparticles in Underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ Single Crystals
• Ferromagnetic Ising Spin Chains Emerging from the Spin Ice under Magnetic Field
• Low-Temperature Heat Transport in the Low-Dimensional Quantum Magnet NiCl_{2}-4SC(NH_{2})_{2}
• Observing Monopoles in a Magnetic Analog of Ice
• Field-dependent thermal transport in the Haldane chain compound NENP
• Low Temperature Specific Heat of Dy${}_2$Ti${}_2$O${}_7$ in the Kagome Ice State
• Electronic Inhomogeneity and Breakdown of the Universal Thermal Conductivity in Cuprate Superconductors
• Thermal Conductivity and Specific Heat of the Spin-Ice Compound Dy${}_2$Ti${}_2$O${}_7$: Experimental Evidence for Monopole Heat Transport
• Ordered Phase of the Dipolar Spin Ice under [110]-Magnetic Fields
• Paramagnetic ground state with field-induced partial order in Nd_3Ga_5SiO_{14} probed by low-temperature heat transport
• Large magnetothermal conductivity in GdBaCo_{2}O_{5+x} single crystals
• Large magneto-thermal effect and the spin-phonon coupling in a parent insulating cuprate Pr_{1.3}La_{0.7}CuO_4
• 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 of Nd_2CuO_4: Roles of Nd magnons and spin-structure transitions
• Heat transport of the quasi-one-dimensional alternating spin chain material (CH_{3})_{2}NH_{2}CuCl_{3}
• Intrinsic and extrinsic nonstationary field-driven processes in the spin-ice compound Dy2Ti2O7
• Anisotropic Monopole Heat Transport in the Spin-Ice Compound Dy${}_2$Ti${}_2$O${}_7$
• Thermal conductivity of pure and Mg-doped CuGeO_3 in the incommensurate phase
• Comment on "Low-temperature phonon thermal conductivity of single-crystalline Nd_{2}CuO_{4}: Effects of sample size and surface roughness" by Li et al.
• Thermal conductivity of IPA-CuCl_3: Evidences of ballistic magnon transport and limited applicability of the Bose-Einstein condensation model
• Low-temperature heat transport of the geometrically frustrated antiferromagnets R_2Ti_2O_7 (R = Gd and Er)
• Heat transport of the spin-ice materials Ho${}_2$Ti${}_2$O${}_7$ and Dy${}_2$Ti${}_2$O${}_7$

Cited by in corpus (12)

• The Spinon Fermi Surface U(1) Spin Liquid in a Spin-Orbit-Coupled Triangular Lattice Mott Insulator YbMgGaO4
• Heat transport of cuprate-based low-dimensional quantum magnets with strong exchange coupling
• Thermal transport in a two-dimensional ${\mathbb{Z}}_2$ spin liquid
• Low-temperature transport properties of intermetallic compound HoAgGe with kagome spin ice state
• Topological thermal Hall effect for topological excitations in spin liquid: Emergent Lorentz force on the spinons
• Anomalous Magnetoresistance by Breaking Ice Rule in Bi2Ir2O7/Dy2Ti2O7 Heterostructure
• Dynamical scaling as a signature of multiple phase competition in Yb${}_2$Ti${}_2$O${}_7$
• Thermal conductivity of the diamond-chain compound Cu_3(CO_3)_2(OH)_2
• Phonon thermal Hall effect in non-magnetic Y${}_2$Ti${}_2$O${}_7$
• Extremely slow non-equilibrium monopole dynamics in classical spin ice
• Low-temperature heat transport of spin-gapped quantum magnets
• Absence of long-range order in an $XY$ pyrochlore antiferromagnet Er${}_2$AlSbO${}_7$