Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase

Abstract

Magnetic and magnetoelastic properties of terbium titanate pyrochlore in paramagnetic phase are simulated. The magnetic field and temperature dependences of magnetization and forced magnetostriction in Tb2Ti2O7 single crystals and polycrystalline samples are calculated in the framework of exchange charge model of crystal field theory and a mean field approximation. The set of electron-deformation coupling constants has been determined. Variations of elastic constants with temperature and applied magnetic field are discussed. Additional strong softening of the crystal lattice at liquid helium temperatures in the magnetic field directed along the rhombic symmetry axis is predicted.

13 pages, 4 figures, 2 tables

References in corpus (6)

• Phonon and crystal field excitations in geometrically frustrated rare earth titanates
• Rods of Neutron Scattering Intensity in Yb2Ti2O7: Compelling Evidence for Significant Anisotropic Exchange in a Magnetic Pyrochlore Oxide
• Stuffed Rare Earth Pyrochlore Solid Solutions
• Structural Fluctuations in the Spin Liquid State of Tb2Ti2O7
• Understanding Paramagnetic Spin Correlations in the Spin-Liquid Pyrochlore Tb2Ti2O7
• Field-Induced magnetic structures in Tb2Ti2O7 at low temperatures: From spin-ice to spin-flip structures

Cited by in corpus (10)

• Magnetoelastic excitations in the pyrochlore spin liquid Tb${}_2$Ti${}_2$O${}_7$
• Crystal field parameters of the rare earth pyrochlores $R_2$Ti${}_2$O${}_7$ ($R$ = Tb, Dy, Ho)
• Spin liquid correlations, anisotropic exchange and symmetry breaking in Tb2Ti2O7
• Magnetically originated phonon-glass-like behavior in Tb_2Ti_2O_7 single crystal
• Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2O7 from neutron spectroscopy
• Magnetic and spectral properties of multi-sublattice oxides SrY2O4:Er3+ and SrEr2O4
• Sample independence of magnetoelastic excitations in the rare earth pyrochlore Tb2Ti2O7
• Mesoscopic correlations in Tb2Ti2O7 spin liquid
• Lattice dynamics and spin-phonon coupling in the kagome spin ice HoAgGe
• Elastic study of electric quadrupolar correlation in the paramagnetic state of a frustrated quantum magnet $\mathrm{T}{\mathrm{b}}_{2+\delta }\mathrm{T}{\mathrm{i}}_{2-\delta }{\mathrm{O}}_7$