Spin liquid correlations, anisotropic exchange and symmetry breaking in Tb2Ti2O7

Abstract

We have studied the low energy spin dynamics between 4.6K and 0.07K in a Tb2Ti2O7 single crystal sample, by means of inelastic neutron scattering experiments. The spectra consist in a dual response, with a static and an inelastic contribution, showing striking Q-dependences. We propose an interpretation involving an anisotropic exchange interaction in combination with a breaking of the threefold symmetry at the rare earth site. Simulations of the Q-dependent scattering in the Random Phase Approximation account well for the inelastic response.

References in corpus (13)

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• Coulombic Quantum Liquids in Spin-1/2 Pyrochlores
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• Structural Fluctuations in the Spin Liquid State of Tb2Ti2O7
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• Low-temperature magnetization in geometrically frustrated Tb2Ti2O7
• Vibrating-coil magnetometry of the spin liquid properties of Tb2Ti2O7
• Spin dynamics in the ordered spin ice Tb${}_2$Sn${}_2$O${}_7$
• Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase
• Absence of anomalous negative lattice-expansion for polycrystalline sample of Tb2Ti2O7

Cited by in corpus (38)

• Quantum Spin Ice: A Search for Gapless Quantum Spin Liquids in Pyrochlore Magnets
• Frustrated quantum rare-earth pyrochlores
• Magnetic-Moment Fragmentation and Monopole Crystallization
• Living on the edge : ground-state selection in quantum spin-ice pyrochlores
• Theory of multiple--phase competition in pyrochlore magnets with anisotropic exchange, with application to Yb2Ti2O7, Er2Ti2O7 and Er2Sn2O7
• Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr${}_2$Zr${}_2$O${}_7$
• Magnetoelastic excitations in the pyrochlore spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Long-range order and spin-liquid states of polycrystalline Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$
• Crystal field parameters of the rare earth pyrochlores $R_2$Ti${}_2$O${}_7$ ($R$ = Tb, Dy, Ho)
• Magnetically originated phonon-glass-like behavior in Tb_2Ti_2O_7 single crystal
• Structural and magnetic properties of two branches of the Tripod Kagome Lattice family A${}_2$RE${}_3$Sb${}_3$O${}_{14}$ (A = Mg, Zn; RE = Pr, Nd, Gd, Tb, Dy, Ho, Er, Yb)
• Neutron spectroscopic study of crystal field excitations in Tb2Ti2O7 and Tb2Sn2O7
• Quantum versus Classical Spin Fragmentation in Dipolar Kagome Ice Ho3Mg2Sb3O14
• Temperature and Magnetic Field Dependence of Spin Ice Correlations in the Pyrochlore Magnet Tb2Ti2O7
• Multiferroicity in spin ice: towards a magnetic crystallography of Tb2Ti2O7 in a field
• Double Vibronic process in the quantum spin ice candidate Tb${}_2$Ti${}_2$O${}_7$ revealed by terahertz spectroscopy
• Gapped and gapless short range ordered magnetic states with $(\frac{1}{2},\frac{1}{2},\frac{1}{2})$ wavevectors in the pyrochlore magnet Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+\delta }$
• Fluctuation-Driven Selection at Criticality in a Frustrated Magnetic System: the Case of Multiple-k Partial Order on the Pyrochlore Lattice
• Sample independence of magnetoelastic excitations in the rare earth pyrochlore Tb2Ti2O7
• Composite spin and quadrupole wave in the ordered phase of Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$
• Evidence for a dynamical ground state in a frustrated pyrohafnate Tb2Hf2O7
• Mesoscopic correlations in Tb2Ti2O7 spin liquid
• Experimental identification of electric dipoles induced by magnetic monopoles in Tb2Ti2O7
• Electric field control of emergent electrodynamics in quantum spin ice
• Charge and spin correlations in the Monopole Liquid
• Quenched crystal field disorder and magnetic liquid ground states in Tb2Sn2-xTixO7
• Continuum excitation and pseudospin wave in quantum spin-liquid and quadrupole ordered states of Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$
• The Polarized Monopole Liquid: a Coulomb phase in a fluid of magnetic charges
• Terahertz Magneto-optical investigation of quadrupolar spin-lattice effects in magnetically frustrated Tb2Ti2O7
• Spin correlations of quantum-spin-liquid and quadrupole-ordered states of Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$
• Low temperature crystal structure and local magnetometry for the geometrically frustrated pyrochlore Tb2Ti2O7
• Traversing the pyrochlore stability diagram; microwave-assisted synthesis and discovery of mixed B-site Ln${}_2$InSbO${}_7$ family
• Effective spin-1/2 exchange interactions in Tb${}_2$Ti${}_2$O${}_7$
• Elastic study of electric quadrupolar correlation in the paramagnetic state of a frustrated quantum magnet $\mathrm{T}{\mathrm{b}}_{2+\delta }\mathrm{T}{\mathrm{i}}_{2-\delta }{\mathrm{O}}_7$
• Intertwined Magnetic Dipolar and Electric Quadrupolar Correlations in the Pyrochlore Tb${}_2$Ge${}_2$O${}_7$
• Flux roughening in spin ice with mixed $\pm J$ interactions
• Spin and quadrupole correlations by three-spin interaction in the frustrated pyrochlore magnet Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$
• Disorder-induced proximate quantum spin ice phase in Pr2Sn2O7