Field-Induced Spin-Ice-Like Orders in Spin Liquid Tb2Ti2O7

H. Cao, A. Gukasov, I. Mirebeau, P. Bonville, and G. Dhalenne.
Phys. Rev. Lett. 101, 196402 – Published 5 November 2008

Abstract

We have studied the field-induced magnetic structures in Tb2Ti2O7, in a wide temperature (0.3<T<270K) and field (0<H<7T) range, by single crystal polarized and unpolarized neutron diffraction, with H[110] axis. A ferromagneticlike structure with k=0 propagation vector is induced, whose local order at low field and low temperature is akin to spin ice. The four Tb ions separate in α and β chains having different values of the magnetic moments, which is quantitatively explained by taking the crystal field anisotropy into account. Above 2 T and below 2 K, an antiferromagneticlike structure with k=(0,0,1) is induced besides the k=0 structure. It shows a reentrant behavior and extends over a finite length scale. It occurs together with a broadening of the nuclear peaks, which suggests a field-induced distortion and magnetostriction effect.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 7 July 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.196402

©2008 American Physical Society

Authors & Affiliations

H. Cao1, A. Gukasov1, I. Mirebeau1, P. Bonville2, and G. Dhalenne.3

  • 1Laboratoire Léon Brillouin, CEA-CNRS, CE-Saclay, 91191 Gif-sur-Yvette, France
  • 2Service de Physique de l’Etat Condensé, CEA-CNRS, CE-Saclay, 91191 Gif-Sur-Yvette, France
  • 3Laboratoire de Physico-Chimie de l’Etat Solide Université Paris-Sud, 91405 Orsay, France

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 101, Iss. 19 — 7 November 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×