Statics and dynamics of the highly correlated spin ice Ho2Ge2O7

Abstract

The pyrochlore Ho2Ge2O7 is a new highly correlated spin ice material. Physical property measurements including x-ray diffraction, dc susceptibility and ac susceptibility, confirm that it shares the distinctive characteristics of other known spin ices. Polarized neutron scattering measurements on a powder sample, combined with reverse Monte Carlo (RMC) refinements, give unique information about the spin ice state in Ho2Ge2O7. RMC refinements are used to fit the powder magnetic diffuse scattering and predict the single crystal magnetic scattering of Ho2Ge2O7, demonstrating consistency with spin ice behavior.

References in corpus (12)

• Magnetic Monopoles in Spin Ice
• Magnetic Pyrochlore Oxides
• Dipolar Interactions and Origin of Spin Ice in Ising Pyrochlore Magnets
• Magnetic Charge Transport
• Spin Correlations in Ho${}_2$Ti${}_2$O${}_7$: a Dipolar Spin Ice System
• Thermodynamic Properties of the Dipolar Spin Ice Model
• Dy2Ti2O7 Spin Ice: a Test Case for Emergent Clusters in a Frustrated Magnet
• Debye-Hückel theory for spin ice at low temperature
• Neutron scattering study of dipolar spin ice Ho_2Sn_2O_7: Frustrated pyrochlore magnet
• Neutron Scattering Investigation of the Spin Ice State in Dy2Ti2O7
• Empirical Magnetic Structure of Frustrated Spin Systems
• Structure and magnetic properties of the Ho2Ge2O7 pyrogermanate

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