Low-temperature magnetization in geometrically frustrated Tb2Ti2O7

Abstract

The nature of the low temperature ground state of the pyrochlore compound Tb2Ti2O7 remains a puzzling issue. Dynamic fluctuations and short-range correlations persist down to 50 mK, as evidenced by microscopic probes. In parallel, magnetization measurements show irreversibilities and glassy behavior below 200 mK. We have performed magnetization and AC susceptibility measurements on four single crystals down to 57 mK. We did not observe a clear plateau in the magnetization as a function of field along the [111] direction, as suggested by the quantum spin ice model. In addition to a freezing around 200 mK, slow dynamics are observed in the AC susceptibility up to 4 K. The overall frequency dependence cannot be described by a canonical spin-glass behavior.

5 pages, 4 figures + Supp. Mat (3 pages, 5 figures)

References in corpus (8)

• Dynamically-Induced Frustration as a Route to a Quantum Spin Ice State in Tb2Ti2O7 via Virtual Crystal Field Excitations and Quantum Many-Body Effects
• Phonon and crystal field excitations in geometrically frustrated rare earth titanates
• Structural Fluctuations in the Spin Liquid State of Tb2Ti2O7
• Understanding Paramagnetic Spin Correlations in the Spin-Liquid Pyrochlore Tb2Ti2O7
• Proposal for a [111] Magnetization Plateau in the Spin Liquid State of Tb2Ti2O7
• Vibrating-coil magnetometry of the spin liquid properties of Tb2Ti2O7
• Low temperature dynamic freezing and the fragility of ordering in Tb2Sn2O7
• Field-Induced magnetic structures in Tb2Ti2O7 at low temperatures: From spin-ice to spin-flip structures

Cited by in corpus (32)

• Quantum Spin Ice: A Search for Gapless Quantum Spin Liquids in Pyrochlore Magnets
• Magnetic-Moment Fragmentation and Monopole Crystallization
• Lightly stuffed pyrochlore structure of single-crystalline Yb2Ti2O7 grown by the optical floating zone technique
• Magnetoelastic excitations in the pyrochlore spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Fluctuations and all-in$-$all-out ordering in dipole-octupole Nd2Zr2O7
• Candidate quantum spin ice in the pyrochlore Pr${}_2$Hf${}_2$O${}_7$
• Crystal field parameters of the rare earth pyrochlores $R_2$Ti${}_2$O${}_7$ ($R$ = Tb, Dy, Ho)
• Coulomb spin liquid in anion-disordered pyrochlore Tb${}_2$Hf${}_2$O${}_7$
• Magnetically originated phonon-glass-like behavior in Tb_2Ti_2O_7 single crystal
• Spin liquid correlations, anisotropic exchange and symmetry breaking in Tb2Ti2O7
• Topological Sector Fluctuations and Curie Law Crossover in Spin Ice
• Randomness-induced quantum spin liquid behavior in the $s=$1/2 bond-random Heisenberg antiferromagnet on the pyrochlore lattice
• Neutron spectroscopic study of crystal field excitations in Tb2Ti2O7 and Tb2Sn2O7
• New physics in frustrated magnets: Spin ices, monopoles, etc
• Low-Temperature Low-Field Phases of the Pyrochlore Quantum Magnet Tb${}_2$Ti${}_2$O${}_7$
• Palmer-Chalker correlations in the XY pyrochlore antiferromagnet Er2Sn2O7
• Temperature and Magnetic Field Dependence of Spin Ice Correlations in the Pyrochlore Magnet Tb2Ti2O7
• Sample independence of magnetoelastic excitations in the rare earth pyrochlore Tb2Ti2O7
• Absence of long range order in the frustrated magnet SrDy${}_2$O${}_4$ due to trapped defects from a dimensionality crossover
• 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${}_{7+\delta }$
• Incipient Ferromagnetism in Tb2Ge2O7: Application of Chemical Pressure to the Enigmatic Spin Liquid, Tb2Ti2O7
• Evidence for a dynamical ground state in a frustrated pyrohafnate Tb2Hf2O7
• Mesoscopic correlations in Tb2Ti2O7 spin 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${}_{7+y}$
• 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
• Collective magnetic state induced by charge disorder in the non-Kramers rare-earth pyrochlore Tb${}_2$ScNbO${}_7$
• Effective spin-1/2 exchange interactions in Tb${}_2$Ti${}_2$O${}_7$
• Anomalous out-of-equilibrium dynamics in the spin-ice material Dy${}_2$Ti${}_2$O${}_7$ under moderate magnetic fields
• Excitation spectrum and low-temperature magnetism in disordered defect-fluorite Ho2Zr2O7
• First Observed Metal-like to Insulator Transition in the vacant 3d orbital Quantum Spin Liquid Tb${}_2$Ti${}_2$O${}_7$