Double-layered monopolar order in Tb2Ti2O7 spin liquid

Abstract

Ho2Ti2O7 and Dy2Ti2O7 spin ices exhibit elementary excitations akin to magnetic monopoles. Here we focus on Tb2Ti2O7 spin liquid, where correlated magnetic moments keep fluctuating down to very low temperatures. Using a monopole picture, we have re-analyzed the field-induced magnetic structure previously determined by neutron diffraction in Tb2Ti2O7. We show that under a high field applied along a [110] direction, Tb2Ti2O7 orders as a three dimensional arrangement of monopole and antimonopole double layers. In contrast, Ho2Ti2O7 spin ice in the same conditions behaves as a monopole-free state. By symmetry analysis we derived the distortions compatible with the observed magnetic structure of Tb2Ti2O7 which can be related to the appearance of the double-layered monopolar order.

6 pages, 6 figures, submitted for publication

References in corpus (9)

• Magnetic Pyrochlore Oxides
• Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7
• Dynamically-Induced Frustration as a Route to a Quantum Spin Ice State in Tb2Ti2O7 via Virtual Crystal Field Excitations and Quantum Many-Body Effects
• Observation of Magnetic Monopoles in Spin Ice
• Structural Fluctuations in the Spin Liquid State of Tb2Ti2O7
• Field Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7
• Magnetoelastics of a spin liquid: X-ray diffraction studies of Tb2Ti2O7 in pulsed magnetic fields
• Field induced spin ice like orders in spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Field-Induced magnetic structures in Tb2Ti2O7 at low temperatures: From spin-ice to spin-flip structures

Cited by in corpus (9)

• Frustrated quantum rare-earth pyrochlores
• The Chemistry of Quantum Spin Liquids
• Magnetic-Moment Fragmentation and Monopole Crystallization
• Multiferroicity in spin ice: towards a magnetic crystallography of Tb2Ti2O7 in a field
• Mesoscopic correlations in Tb2Ti2O7 spin liquid
• Experimental identification of electric dipoles induced by magnetic monopoles in Tb2Ti2O7
• Charge and spin correlations in the Monopole Liquid
• The Polarized Monopole Liquid: a Coulomb phase in a fluid of magnetic charges
• Monte Carlo study on the detection of classical order by disorder in real antiferromagnetic Ising pyrochlores