Magnetic correlations in spin ice Ho2-xYxTi2O7 as revealed by neutron polarization analysis

Abstract

We present single-crystal neutron-diffuse-scattering measurements with polarization analysis on the spin ice Ho2-xYxTi2O7 (x = 0, 0.3, and 1). At 2 K, the spin flip scattering patterns are typical of a nearest-neighbor spin ice and the effects of Y doping are seen in the width of the pinch points. At low-T, the spin flip patterns are characteristic of a dipolar spin ice and are unaffected by Y doping. In the non-spin flip channel, we observe the signature of strong antiferromagnetic correlations at the same T as the dipolar spin ice correlations appear in the spin flip channel. These experimental observations have been well reproduced by our Monte Carlo simulations.

13 pages, 3 figures

References in corpus (21)

• 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
• Dipolar Interactions and Origin of Spin Ice in Ising Pyrochlore Magnets
• The "Coulomb phase" in frustrated systems
• Magnetic Charge Transport
• Signature of magnetic monopole and Dirac string dynamics in spin ice
• Spin Correlations in Ho${}_2$Ti${}_2$O${}_7$: a Dipolar Spin Ice System
• Magnetic and Thermodynamic Properties of the Collective Paramagnet-Spin Liquid Pyrochlore Tb2Ti2O7
• Long Range Order at Low Temperature in Dipolar Spin Ice
• Why spin ice obeys the ice rules
• Thermodynamic Properties of the Dipolar Spin Ice Model
• Observation of Magnetic Monopoles in Spin Ice
• Zero Point Entropy in Stuffed Spin Ice
• Neutron scattering study of dipolar spin ice Ho_2Sn_2O_7: Frustrated pyrochlore magnet
• Revisiting Static and Dynamic Spin Ice Correlations in Ho2Ti2O7
• Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7
• Quantum and thermal spin relaxation in diluted spin ice: Dy(2-x)MxTi2O7 (M = Lu, Y)
• Spin ice behavior in Dy2Sn2-xSbxO7+x/2 and Dy2NbScO7
• Origin of Spin Ice Behavior in Ising Pyrochlore Magnets with Long Range Dipole Interactions: an Insight from Mean-Field Theory

Cited by in corpus (17)

• Topological Sector Fluctuations and Curie Law Crossover in Spin Ice
• Order from structural disorder in $XY$ pyrochlore antiferromagnet $\mathrm{E}{\mathrm{r}}_2\mathrm{T}{\mathrm{i}}_2{\mathrm{O}}_7$
• Coulomb phase diagnostics as function of temperature, interaction range and disorder
• Ultrasonic investigations of spin-ices Dy${}_2$Ti${}_2$O${}_7$ and Ho${}_2$Ti${}_2$O${}_7$ in and out of equilibrium
• Dynamic susceptibility and dynamic correlations in spin ice
• Generalised Longitudinal Susceptibility for Magnetic Monopoles in Spin Ice
• Non-monotonic residual entropy in diluted spin ice: a comparison between Monte Carlo simulations of diluted dipolar spin ice models and experimental results
• Rod motifs in neutron scattering in spin ice
• Probing Flat Band Physics in Spin Ice Systems via Polarized Neutron Scattering
• Charge and spin correlations in the Monopole Liquid
• Deviation from the dipole-ice model in the new spinel spin-ice candidate, MgEr${}_2$Se${}_4$
• Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho2Ti2O7
• The Polarized Monopole Liquid: a Coulomb phase in a fluid of magnetic charges
• Spin Wave Excitations in AFe${}_{1.5}$Se${}_2$ (A=K, Tl): Analytical Study
• Random site dilution properties of frustrated magnets on a hierarchical lattice
• Screening and the Pinch Point Paradox in Spin Ice
• Spin structure factor and thermodynamics in the antiferromagnetic quantum Ising model in the pyrochlore lattice