Field-Induced Transition on Triangular Plane in the Spin Ice Compound Dy2Ti2O7

Abstract

The origin of the lowest-temperature anomaly reported several years ago using a polycrystalline sample of the spin ice compound Dy2Ti2O7 had remained unresolved. Here we finally clarify its origin by susceptibility measurements down to 65 mK using single crystals under accurate control of the magnetic fields in two independent directions. We demonstrate that the transition is induced under a subtle field combination that precisely cancel the nearest-neighbor spin interactions acting on the spins on the triangular lattice within the pyrochlore structure. Contrary to the other two fieldinduced transitions, this transition is driven only by the interactions beyond the nearest neighbors. Our observation thus provides the first qualitative evidence for the essential importance of the dipolar interaction beyond the nearest neighbors in the spin ice.

submitted to PRL

References in corpus (7)

• Quantum-Classical Reentrant Relaxation Crossover in Dy2Ti2O7 Spin-Ice
• Finite Temperature Transitions in Large Magnetic Field in Dipolar Spin Ice
• Anisotropic Release of the Residual Zero-point Entropy in the Spin Ice Compound Dy2Ti2O7: Kagome-ice Behavior
• Ferromagnetic Ising Spin Chains Emerging from the Spin Ice under Magnetic Field
• Low Temperature Specific Heat of Dy${}_2$Ti${}_2$O${}_7$ in the Kagome Ice State
• Ordered Phase of the Dipolar Spin Ice under [110]-Magnetic Fields
• Field-Orientation Dependent Heat Capacity Measurements at Low Temperatures with a Vector Magnet System

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• Kagomé ice state in the dipolar spin ice Dy_{2}Ti_{2}O_{7}
• Revisiting Static and Dynamic Spin Ice Correlations in Ho2Ti2O7
• Refrustration and competing orders in the prototypical Dy2Ti2O7 spin ice material
• New physics in frustrated magnets: Spin ices, monopoles, etc
• A Novel Pyrochlore Ruthenate: Ca2Ru2O7
• Magnetocaloric Study of Spin Relaxation in `Frozen' Dipolar Spin Ice Dy2Ti2O7
• Intermediate magnetisation state and competing orders in Dy${}_2$Ti${}_2$O${}_7$ and Ho${}_2$Ti${}_2$O${}_7$
• Dynamic behavior of magnetic avalanches in the spin-ice compound Dy${}_2$Ti${}_2$O${}_7$
• High-temperature spin relaxation process in Dy${}_2$Ti${}_2$O${}_7$ probed by ${}^{47}$Ti-NQR
• High temperature onset of field-induced transitions in the spin-ice compound Dy2Ti2O7
• Microscopic Aspects of Magnetic Lattice Demagnetizing Factors
• Magnetic Field Induced Transition in Vanadium Spinels
• Probing Flat Band Physics in Spin Ice Systems via Polarized Neutron Scattering
• Emergence of weak pyrochlore phase and signature of field induced spin ice ground state in Dy${}_{2-x}$La${}_x$Zr${}_2$O${}_7$; x = 0, 0.15, 0.3
• Spin ice in a general applied magnetic field: Kasteleyn transition, magnetic torque and rotational magnetocaloric effect