Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase

V. V. Klekovkina; A. R. Zakirov; B. Z. Malkin; L. A. Kasatkina

doi:10.1088/1742-6596/324/1/012036

Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase

Strongly Correlated Electrons 2011-10-27 v2

Authors: V. V. Klekovkina , A. R. Zakirov , B. Z. Malkin , L. A. Kasatkina

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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.

Keywords

Tb2Ti2O7 paramagnetic phase magnetic properties magnetoelastic properties forced magnetostriction exchange charge model crystal field theory elastic constants

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@article{arxiv.1109.5084,
  title  = {Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase},
  author = {V. V. Klekovkina and A. R. Zakirov and B. Z. Malkin and L. A. Kasatkina},
  journal= {arXiv preprint arXiv:1109.5084},
  year   = {2011}
}

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13 pages, 4 figures, 2 tables

Simulations of magnetic and magnetoelastic properties of Tb2Ti2O7 in paramagnetic phase

Abstract

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